From eb27d676fd7d0681516862519ecee42bd0e6933d Mon Sep 17 00:00:00 2001 From: nuragic Date: Fri, 16 Jan 2015 09:14:12 +0100 Subject: [PATCH 1/4] fixing 'maximum call stack sixe exceeded' errors --- buster.js | 2 +- dist/backbone-validation-amd-min.js | 4 +- dist/backbone-validation-amd.js | 14 +- dist/backbone-validation-min.js | 4 +- dist/backbone-validation.js | 10 +- docs/backbone-validation.html | 2715 +++++++++-------- lib/lodash-0.9.2.js | 4258 +++++++++++++++++++++++++++ lib/underscore.js | 1222 -------- package.json | 2 +- src/backbone-validation-amd.js | 4 +- src/backbone-validation.js | 8 +- tests/node/mixin.js | 2 +- 12 files changed, 5601 insertions(+), 2644 deletions(-) create mode 100644 lib/lodash-0.9.2.js delete mode 100644 lib/underscore.js diff --git a/buster.js b/buster.js index 9c886f60..0b03c72a 100644 --- a/buster.js +++ b/buster.js @@ -4,7 +4,7 @@ config['Browser'] = { environment: 'browser', sources: [ 'lib/jquery-1.6.2.js', - 'lib/underscore.js', + 'lib/lodash.js', 'lib/backbone-1.0.0.js', 'dist/backbone-validation.js' ], diff --git a/dist/backbone-validation-amd-min.js b/dist/backbone-validation-amd-min.js index 6b59c18c..f187a3eb 100644 --- a/dist/backbone-validation-amd-min.js +++ b/dist/backbone-validation-amd-min.js @@ -1,8 +1,8 @@ // Backbone.Validation v0.9.1 // -// Copyright (c) 2011-2014 Thomas Pedersen +// Copyright (c) 2011-2015 Thomas Pedersen // Distributed under MIT License // // Documentation and full license available at: // http://thedersen.com/projects/backbone-validation -!function(a){"object"==typeof exports?module.exports=a(require("backbone"),require("underscore")):"function"==typeof define&&define.amd&&define(["backbone","underscore"],a)}(function(a,b){return a.Validation=function(b){"use strict";var c={forceUpdate:!1,selector:"name",labelFormatter:"sentenceCase",valid:Function.prototype,invalid:Function.prototype},d={formatLabel:function(a,b){return j[c.labelFormatter](a,b)},format:function(){var 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is required",acceptance:"{0} must be accepted",min:"{0} must be greater than or equal to {1}",max:"{0} must be less than or equal to {1}",range:"{0} must be between {1} and {2}",length:"{0} must be {1} characters",minLength:"{0} must be at least {1} characters",maxLength:"{0} must be at most {1} characters",rangeLength:"{0} must be between {1} and {2} characters",oneOf:"{0} must be one of: {1}",equalTo:"{0} must be the same as {1}",digits:"{0} must only contain digits",number:"{0} must be a number",email:"{0} must be a valid email",url:"{0} must be a valid url",inlinePattern:"{0} is invalid"},i=e.labelFormatters={none:function(a){return a},sentenceCase:function(a){return a.replace(/(?:^\w|[A-Z]|\b\w)/g,function(a,b){return 0===b?a.toUpperCase():" "+a.toLowerCase()}).replace(/_/g," ")},label:function(a,b){return b.labels&&b.labels[a]||i.sentenceCase(a,b)}},j=e.validators=function(){var b=String.prototype.trim?function(a){return null===a?"":String.prototype.trim.call(a)}:function(a){var b=/^\s+/,c=/\s+$/;return null===a?"":a.toString().replace(b,"").replace(c,"")},c=function(b){return a.isNumber(b)||a.isString(b)&&b.match(g.number)},d=function(c){return!(a.isNull(c)||a.isUndefined(c)||a.isString(c)&&""===b(c)||a.isArray(c)&&a.isEmpty(c))};return{fn:function(b,c,d,e,f){return a.isString(d)&&(d=e[d]),d.call(e,b,c,f)},required:function(b,c,e,f,g){var i=a.isFunction(e)?e.call(f,b,c,g):e;return i||d(b)?i&&!d(b)?this.format(h.required,this.formatLabel(c,f)):void 0:!1},acceptance:function(b,c,d,e){return"true"===b||a.isBoolean(b)&&b!==!1?void 0:this.format(h.acceptance,this.formatLabel(c,e))},min:function(a,b,d,e){return!c(a)||d>a?this.format(h.min,this.formatLabel(b,e),d):void 0},max:function(a,b,d,e){return!c(a)||a>d?this.format(h.max,this.formatLabel(b,e),d):void 0},range:function(a,b,d,e){return!c(a)||ad[1]?this.format(h.range,this.formatLabel(b,e),d[0],d[1]):void 0},length:function(b,c,d,e){return a.isString(b)&&b.length===d?void 0:this.format(h.length,this.formatLabel(c,e),d)},minLength:function(b,c,d,e){return!a.isString(b)||b.lengthd?this.format(h.maxLength,this.formatLabel(c,e),d):void 0},rangeLength:function(b,c,d,e){return!a.isString(b)||b.lengthd[1]?this.format(h.rangeLength,this.formatLabel(c,e),d[0],d[1]):void 0},oneOf:function(b,c,d,e){return a.include(d,b)?void 0:this.format(h.oneOf,this.formatLabel(c,e),d.join(", "))},equalTo:function(a,b,c,d,e){return a!==e[c]?this.format(h.equalTo,this.formatLabel(b,d),this.formatLabel(c,d)):void 0},pattern:function(a,b,c,e){return d(a)&&a.toString().match(g[c]||c)?void 0:this.format(h[c]||h.inlinePattern,this.formatLabel(b,e),c)}}}();return a.each(j,function(b,d){j[d]=a.bind(j[d],a.extend({},c,j))}),e}(b),a.Validation}); \ No newline at end of file diff --git a/dist/backbone-validation-amd.js b/dist/backbone-validation-amd.js index 31f041a1..591fc933 100644 --- a/dist/backbone-validation-amd.js +++ b/dist/backbone-validation-amd.js @@ -1,15 +1,15 @@ // Backbone.Validation v0.9.1 // -// Copyright (c) 2011-2014 Thomas Pedersen +// Copyright (c) 2011-2015 Thomas Pedersen // Distributed under MIT License // // Documentation and full license available at: // http://thedersen.com/projects/backbone-validation (function (factory) { if (typeof exports === 'object') { - module.exports = factory(require('backbone'), require('underscore')); + module.exports = factory(require('backbone'), require('lodash')); } else if (typeof define === 'function' && define.amd) { - define(['backbone', 'underscore'], factory); + define(['backbone', 'lodash'], factory); } }(function (Backbone, _) { Backbone.Validation = (function(_){ @@ -71,13 +71,7 @@ _.each(obj, function(val, key) { if(obj.hasOwnProperty(key)) { - if (val && typeof val === 'object' && !( - val instanceof Array || - val instanceof Date || - val instanceof RegExp || - val instanceof Backbone.Model || - val instanceof Backbone.Collection) - ) { + if (_.isPlainObject(val)) { flatten(val, into, prefix + key + '.'); } else { diff --git a/dist/backbone-validation-min.js b/dist/backbone-validation-min.js index 4b62a7df..c45fd03f 100644 --- a/dist/backbone-validation-min.js +++ b/dist/backbone-validation-min.js @@ -1,8 +1,8 @@ // Backbone.Validation v0.9.1 // -// Copyright (c) 2011-2014 Thomas Pedersen +// Copyright (c) 2011-2015 Thomas Pedersen // Distributed under MIT License // // Documentation and full license available at: // http://thedersen.com/projects/backbone-validation -Backbone.Validation=function(a){"use strict";var b={forceUpdate:!1,selector:"name",labelFormatter:"sentenceCase",valid:Function.prototype,invalid:Function.prototype},c={formatLabel:function(a,c){return i[b.labelFormatter](a,c)},format:function(){var a=Array.prototype.slice.call(arguments),b=a.shift();return b.replace(/\{(\d+)\}/g,function(b,c){return"undefined"!=typeof a[c]?a[c]:b})}},d=function(b,c,e){return c=c||{},e=e||"",a.each(b,function(a,f){b.hasOwnProperty(f)&&(!a||"object"!=typeof a||a 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is required",acceptance:"{0} must be accepted",min:"{0} must be greater than or equal to {1}",max:"{0} must be less than or equal to {1}",range:"{0} must be between {1} and {2}",length:"{0} must be {1} characters",minLength:"{0} must be at least {1} characters",maxLength:"{0} must be at most {1} characters",rangeLength:"{0} must be between {1} and {2} characters",oneOf:"{0} must be one of: {1}",equalTo:"{0} must be the same as {1}",digits:"{0} must only contain digits",number:"{0} must be a number",email:"{0} must be a valid email",url:"{0} must be a valid url",inlinePattern:"{0} is invalid"},i=e.labelFormatters={none:function(a){return a},sentenceCase:function(a){return a.replace(/(?:^\w|[A-Z]|\b\w)/g,function(a,b){return 0===b?a.toUpperCase():" "+a.toLowerCase()}).replace(/_/g," ")},label:function(a,b){return b.labels&&b.labels[a]||i.sentenceCase(a,b)}},j=e.validators=function(){var b=String.prototype.trim?function(a){return null===a?"":String.prototype.trim.call(a)}:function(a){var 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0:this.format(h.length,this.formatLabel(c,e),d)},minLength:function(b,c,d,e){return!a.isString(b)||b.lengthd?this.format(h.maxLength,this.formatLabel(c,e),d):void 0},rangeLength:function(b,c,d,e){return!a.isString(b)||b.lengthd[1]?this.format(h.rangeLength,this.formatLabel(c,e),d[0],d[1]):void 0},oneOf:function(b,c,d,e){return a.include(d,b)?void 0:this.format(h.oneOf,this.formatLabel(c,e),d.join(", "))},equalTo:function(a,b,c,d,e){return a!==e[c]?this.format(h.equalTo,this.formatLabel(b,d),this.formatLabel(c,d)):void 0},pattern:function(a,b,c,e){return d(a)&&a.toString().match(g[c]||c)?void 0:this.format(h[c]||h.inlinePattern,this.formatLabel(b,e),c)}}}();return a.each(j,function(b,d){j[d]=a.bind(j[d],a.extend({},c,j))}),e}(_); \ No newline at end of file +Backbone.Validation=function(a){"use strict";var b={forceUpdate:!1,selector:"name",labelFormatter:"sentenceCase",valid:Function.prototype,invalid:Function.prototype},c={formatLabel:function(a,c){return i[b.labelFormatter](a,c)},format:function(){var a=Array.prototype.slice.call(arguments),b=a.shift();return b.replace(/\{(\d+)\}/g,function(b,c){return"undefined"!=typeof a[c]?a[c]:b})}},d=function(b,c,e){return c=c||{},e=e||"",a.each(b,function(f,g){b.hasOwnProperty(g)&&(a.isPlainObject(f)?d(f,c,e+g+"."):c[e+g]=f)}),c},e=function(){var e=function(b){return a.reduce(a.keys(a.result(b,"validation")||{}),function(a,b){return a[b]=void 0,a},{})},g=function(b,c){var d=b.validation?a.result(b,"validation")[c]||{}:{};return(a.isFunction(d)||a.isString(d))&&(d={fn:d}),a.isArray(d)||(d=[d]),a.reduce(d,function(b,c){return a.each(a.without(a.keys(c),"msg"),function(a){b.push({fn:j[a],val:c[a],msg:c.msg})}),b},[])},h=function(b,d,e,f){return a.reduce(g(b,d),function(g,h){var i=a.extend({},c,j),k=h.fn.call(i,e,d,h.val,b,f);return k===!1||g===!1?!1:k&&!g?a.result(h,"msg")||k:g},"")},i=function(b,c){var e,f={},g=!0,i=a.clone(c),j=d(c);return a.each(j,function(a,c){e=h(b,c,a,i),e&&(f[c]=e,g=!1)}),{invalidAttrs:f,isValid:g}},k=function(b,c){return{preValidate:function(b,c){var d,e=this,f={};return a.isObject(b)?(a.each(b,function(a,b){d=e.preValidate(b,a),d&&(f[b]=d)}),a.isEmpty(f)?void 0:f):h(this,b,c,a.extend({},this.attributes))},isValid:function(b){var c=d(this.attributes);return a.isString(b)?!h(this,b,c[b],a.extend({},this.attributes)):a.isArray(b)?a.reduce(b,function(b,d){return b&&!h(this,d,c[d],a.extend({},this.attributes))},!0,this):(b===!0&&this.validate(),this.validation?this._isValid:!0)},validate:function(f,g){var h=this,j=!f,k=a.extend({},c,g),l=e(h),m=a.extend({},l,h.attributes,f),n=d(f||m),o=i(h,m);return h._isValid=o.isValid,a.each(l,function(a,c){var d=o.invalidAttrs.hasOwnProperty(c);d||k.valid(b,c,k.selector)}),a.each(l,function(a,c){var d=o.invalidAttrs.hasOwnProperty(c),e=n.hasOwnProperty(c);d&&(e||j)&&k.invalid(b,c,o.invalidAttrs[c],k.selector)}),a.defer(function(){h.trigger("validated",h._isValid,h,o.invalidAttrs),h.trigger("validated:"+(h._isValid?"valid":"invalid"),h,o.invalidAttrs)}),!k.forceUpdate&&a.intersection(a.keys(o.invalidAttrs),a.keys(n)).length>0?o.invalidAttrs:void 0}}},l=function(b,c,d){a.extend(c,k(b,d))},m=function(a){delete a.validate,delete a.preValidate,delete a.isValid},n=function(a){l(this.view,a,this.options)},o=function(a){m(a)};return{version:"0.9.1",configure:function(c){a.extend(b,c)},bind:function(c,d){d=a.extend({},b,f,d);var e=d.model||c.model,g=d.collection||c.collection;if("undefined"==typeof e&&"undefined"==typeof g)throw"Before you execute the binding your view must have a model or a collection.\nSee http://thedersen.com/projects/backbone-validation/#using-form-model-validation for more information.";e?l(c,e,d):g&&(g.each(function(a){l(c,a,d)}),g.bind("add",n,{view:c,options:d}),g.bind("remove",o))},unbind:function(b,c){c=a.extend({},c);var d=c.model||b.model,e=c.collection||b.collection;d?m(d):e&&(e.each(function(a){m(a)}),e.unbind("add",n),e.unbind("remove",o))},mixin:k(null,b)}}(),f=e.callbacks={valid:function(a,b,c){a.$("["+c+'~="'+b+'"]').removeClass("invalid").removeAttr("data-error")},invalid:function(a,b,c,d){a.$("["+d+'~="'+b+'"]').addClass("invalid").attr("data-error",c)}},g=e.patterns={digits:/^\d+$/,number:/^-?(?:\d+|\d{1,3}(?:,\d{3})+)(?:\.\d+)?$/,email:/^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))$/i,url:/^(https?|ftp):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i},h=e.messages={required:"{0} is required",acceptance:"{0} must be accepted",min:"{0} must be greater than or equal to {1}",max:"{0} must be less than or equal to {1}",range:"{0} must be between {1} and {2}",length:"{0} must be {1} characters",minLength:"{0} must be at least {1} characters",maxLength:"{0} must be at most {1} characters",rangeLength:"{0} must be between {1} and {2} characters",oneOf:"{0} must be one of: {1}",equalTo:"{0} must be the same as {1}",digits:"{0} must only contain digits",number:"{0} must be a number",email:"{0} must be a valid email",url:"{0} must be a valid url",inlinePattern:"{0} is invalid"},i=e.labelFormatters={none:function(a){return a},sentenceCase:function(a){return a.replace(/(?:^\w|[A-Z]|\b\w)/g,function(a,b){return 0===b?a.toUpperCase():" "+a.toLowerCase()}).replace(/_/g," ")},label:function(a,b){return b.labels&&b.labels[a]||i.sentenceCase(a,b)}},j=e.validators=function(){var b=String.prototype.trim?function(a){return null===a?"":String.prototype.trim.call(a)}:function(a){var b=/^\s+/,c=/\s+$/;return null===a?"":a.toString().replace(b,"").replace(c,"")},c=function(b){return a.isNumber(b)||a.isString(b)&&b.match(g.number)},d=function(c){return!(a.isNull(c)||a.isUndefined(c)||a.isString(c)&&""===b(c)||a.isArray(c)&&a.isEmpty(c))};return{fn:function(b,c,d,e,f){return a.isString(d)&&(d=e[d]),d.call(e,b,c,f)},required:function(b,c,e,f,g){var i=a.isFunction(e)?e.call(f,b,c,g):e;return i||d(b)?i&&!d(b)?this.format(h.required,this.formatLabel(c,f)):void 0:!1},acceptance:function(b,c,d,e){return"true"===b||a.isBoolean(b)&&b!==!1?void 0:this.format(h.acceptance,this.formatLabel(c,e))},min:function(a,b,d,e){return!c(a)||d>a?this.format(h.min,this.formatLabel(b,e),d):void 0},max:function(a,b,d,e){return!c(a)||a>d?this.format(h.max,this.formatLabel(b,e),d):void 0},range:function(a,b,d,e){return!c(a)||ad[1]?this.format(h.range,this.formatLabel(b,e),d[0],d[1]):void 0},length:function(b,c,d,e){return a.isString(b)&&b.length===d?void 0:this.format(h.length,this.formatLabel(c,e),d)},minLength:function(b,c,d,e){return!a.isString(b)||b.lengthd?this.format(h.maxLength,this.formatLabel(c,e),d):void 0},rangeLength:function(b,c,d,e){return!a.isString(b)||b.lengthd[1]?this.format(h.rangeLength,this.formatLabel(c,e),d[0],d[1]):void 0},oneOf:function(b,c,d,e){return a.include(d,b)?void 0:this.format(h.oneOf,this.formatLabel(c,e),d.join(", "))},equalTo:function(a,b,c,d,e){return a!==e[c]?this.format(h.equalTo,this.formatLabel(b,d),this.formatLabel(c,d)):void 0},pattern:function(a,b,c,e){return d(a)&&a.toString().match(g[c]||c)?void 0:this.format(h[c]||h.inlinePattern,this.formatLabel(b,e),c)}}}();return a.each(j,function(b,d){j[d]=a.bind(j[d],a.extend({},c,j))}),e}(_); \ No newline at end of file diff --git a/dist/backbone-validation.js b/dist/backbone-validation.js index 6b112dd1..a0e90322 100644 --- a/dist/backbone-validation.js +++ b/dist/backbone-validation.js @@ -1,6 +1,6 @@ // Backbone.Validation v0.9.1 // -// Copyright (c) 2011-2014 Thomas Pedersen +// Copyright (c) 2011-2015 Thomas Pedersen // Distributed under MIT License // // Documentation and full license available at: @@ -64,13 +64,7 @@ Backbone.Validation = (function(_){ _.each(obj, function(val, key) { if(obj.hasOwnProperty(key)) { - if (val && typeof val === 'object' && !( - val instanceof Array || - val instanceof Date || - val instanceof RegExp || - val instanceof Backbone.Model || - val instanceof Backbone.Collection) - ) { + if (_.isPlainObject(val)) { flatten(val, into, prefix + key + '.'); } else { diff --git a/docs/backbone-validation.html b/docs/backbone-validation.html index 2ca0d530..2e9c79a5 100644 --- a/docs/backbone-validation.html +++ b/docs/backbone-validation.html @@ -1,1526 +1,1465 @@ - - - - - backbone-validation.js - - - - - - -
-
- -
    - -
  • -
    -

    backbone-validation.js

    -
    -
    • - - - -
  • -
    - -
    - -
    -

    Backbone.Validation v0.9.0

    -

    Copyright (c) 2011-2013 Thomas Pedersen + + + + + backbone-validation.js + + + + + + +

    +
    + +
      + +
    • +
      +

      backbone-validation.js

      +
      +
      • + + + +
    • +
      + +
      + +
      +

      Backbone.Validation v0.9.1

      +

      Copyright (c) 2011-2015 Thomas Pedersen Distributed under MIT License

      Documentation and full license available at: http://thedersen.com/projects/backbone-validation

      - -
      - - 
      Backbone.Validation = (function(_){
-  'use strict';
      - -
      • - - -
    • -
      - -
      - -
      -

      Default options

      - -
      - -
      • - - -
    • -
      - -
      - -
      - -
      - - 
        var defaultOptions = {
-    forceUpdate: false,
-    selector: 'name',
-    labelFormatter: 'sentenceCase',
-    valid: Function.prototype,
-    invalid: Function.prototype
-  };
      - -
      • - - -
    • -
      - -
      - -
      -

      Helper functions

      - -
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
      Backbone.Validation = (function(_){

+  'use strict';
      + +
      • + + +
    • +
      + +
      + +
      +

      Default options

      + +
      + + 
      +  var defaultOptions = {
+    forceUpdate: false,
+    selector: 'name',
+    labelFormatter: 'sentenceCase',
+    valid: Function.prototype,
+    invalid: Function.prototype
+  };
      + +
      • + + +
    • +
      + +
      + +
      +

      Helper functions

      + +
      + +
      • + + +
    • +
      + +
      + +

      Formatting functions used for formatting error messages

      - -
      - - 
        var formatFunctions = {
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
        var formatFunctions = {
      + +
      • + + +
    • +
      + +
      + +

      Uses the configured label formatter to format the attribute name to make it more readable for the user

      - -
      - - 
          formatLabel: function(attrName, model) {
-      return defaultLabelFormatters[defaultOptions.labelFormatter](attrName, model);
-    },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          formatLabel: function(attrName, model) {
+      return defaultLabelFormatters[defaultOptions.labelFormatter](attrName, model);
+    },
      + +
      • + + +
    • +
      + +
      + +

      Replaces nummeric placeholders like {0} in a string with arguments passed to the function

      - -
      - - 
          format: function() {
-      var args = Array.prototype.slice.call(arguments),
-          text = args.shift();
-      return text.replace(/\{(\d+)\}/g, function(match, number) {
-        return typeof args[number] !== 'undefined' ? args[number] : match;
-      });
-    }
-  };
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          format: function() {
+      var args = Array.prototype.slice.call(arguments),
+          text = args.shift();
+      return text.replace(/\{(\d+)\}/g, function(match, number) {
+        return typeof args[number] !== 'undefined' ? args[number] : match;
+      });
+    }
+  };
      + +
      • + + +
    • +
      + +
      + +

      Flattens an object eg:

      -
      var o = {
+
      var o = {
   address: {
-    street: 'Street',
-    zip: 1234
+    street: 'Street',
+    zip: 1234
   }
-};
      
-
      becomes:
      
-
      var o = {
-  'address.street': 'Street',
-  'address.zip': 1234
-};
      
-
-
      - - 
        var flatten = function (obj, into, prefix) {
-    into = into || {};
-    prefix = prefix || '';
-
-    _.each(obj, function(val, key) {
-      if(obj.hasOwnProperty(key)) {
-        if (val && typeof val === 'object' && !(
-          val instanceof Array ||
-          val instanceof Date ||
-          val instanceof RegExp ||
-          val instanceof Backbone.Model ||
-          val instanceof Backbone.Collection)
-        ) {
-          flatten(val, into, prefix + key + '.');
-        }
-        else {
-          into[prefix + key] = val;
-        }
-      }
-    });
-
-    return into;
-  };
      - -
      • - - -
    • -
      - -
      - -
      -

      Validation

      - -
      - -
      • - - -
    • -
      - -
      - -
      - -
      - - 
        var Validation = (function(){
      - -
      • - - -
    • -
      - -
      - -
      +}; +

      becomes:

      +
      var o = {
+  'address.street': 'Street',
+  'address.zip': 1234
+};
+
      +
      + + 
        var flatten = function (obj, into, prefix) {
+    into = into || {};
+    prefix = prefix || '';
+
+    _.each(obj, function(val, key) {
+      if(obj.hasOwnProperty(key)) {
+        if (_.isPlainObject(val)) {
+          flatten(val, into, prefix + key + '.');
+        }
+        else {
+          into[prefix + key] = val;
+        }
+      }
+    });
+
+    return into;
+  };
      + +
      • + + +
    • +
      + +
      + +
      +

      Validation

      + +
      + + 
      +  var Validation = (function(){
      + +
      • + + +
    • +
      + +
      + +

      Returns an object with undefined properties for all attributes on the model that has defined one or more validation rules.

      - -
      - - 
          var getValidatedAttrs = function(model) {
-      return _.reduce(_.keys(_.result(model, 'validation') || {}), function(memo, key) {
-        memo[key] = void 0;
-        return memo;
-      }, {});
-    };
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          var getValidatedAttrs = function(model) {
+      return _.reduce(_.keys(_.result(model, 'validation') || {}), function(memo, key) {
+        memo[key] = void 0;
+        return memo;
+      }, {});
+    };
      + +
      • + + +
    • +
      + +
      + +

      Looks on the model for validations for a specified attribute. Returns an array of any validators defined, or an empty array if none is defined.

      - -
      - - 
          var getValidators = function(model, attr) {
-      var attrValidationSet = model.validation ? _.result(model, 'validation')[attr] || {} : {};
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          var getValidators = function(model, attr) {
+      var attrValidationSet = model.validation ? _.result(model, 'validation')[attr] || {} : {};
      + +
      • + + +
    • +
      + +
      + +

      If the validator is a function or a string, wrap it in a function validator

      - -
      - - 
            if (_.isFunction(attrValidationSet) || _.isString(attrValidationSet)) {
-        attrValidationSet = {
-          fn: attrValidationSet
-        };
-      }
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            if (_.isFunction(attrValidationSet) || _.isString(attrValidationSet)) {
+        attrValidationSet = {
+          fn: attrValidationSet
+        };
+      }
      + +
      • + + +
    • +
      + +
      + +

      Stick the validator object into an array

      - -
      - - 
            if(!_.isArray(attrValidationSet)) {
-        attrValidationSet = [attrValidationSet];
-      }
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            if(!_.isArray(attrValidationSet)) {
+        attrValidationSet = [attrValidationSet];
+      }
      + +
      • + + +
    • +
      + +
      + +

      Reduces the array of validators into a new array with objects with a validation method to call, the value to validate against and the specified error message, if any

      - -
      - - 
            return _.reduce(attrValidationSet, function(memo, attrValidation) {
-        _.each(_.without(_.keys(attrValidation), 'msg'), function(validator) {
-          memo.push({
-            fn: defaultValidators[validator],
-            val: attrValidation[validator],
-            msg: attrValidation.msg
-          });
-        });
-        return memo;
-      }, []);
-    };
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            return _.reduce(attrValidationSet, function(memo, attrValidation) {
+        _.each(_.without(_.keys(attrValidation), 'msg'), function(validator) {
+          memo.push({
+            fn: defaultValidators[validator],
+            val: attrValidation[validator],
+            msg: attrValidation.msg
+          });
+        });
+        return memo;
+      }, []);
+    };
      + +
      • + + +
    • +
      + +
      + +

      Validates an attribute against all validators defined for that attribute. If one or more errors are found, the first error message is returned. If the attribute is valid, an empty string is returned.

      - -
      - - 
          var validateAttr = function(model, attr, value, computed) {
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          var validateAttr = function(model, attr, value, computed) {
      + +
      • + + +
    • +
      + +
      + +

      Reduces the array of validators to an error message by applying all the validators and returning the first error message, if any.

      - -
      - - 
            return _.reduce(getValidators(model, attr), function(memo, validator){
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            return _.reduce(getValidators(model, attr), function(memo, validator){
      + +
      • + + +
    • +
      + +
      + +

      Pass the format functions plus the default validators as the context to the validator

      - -
      - - 
              var ctx = _.extend({}, formatFunctions, defaultValidators),
-            result = validator.fn.call(ctx, value, attr, validator.val, model, computed);
-
-        if(result === false || memo === false) {
-          return false;
-        }
-        if (result && !memo) {
-          return _.result(validator, 'msg') || result;
-        }
-        return memo;
-      }, '');
-    };
      - -
      • - - -
    • -
      - -
      - -
      -

      Loops through the model's attributes and validates them all. + +

      + + 
              var ctx = _.extend({}, formatFunctions, defaultValidators),
+            result = validator.fn.call(ctx, value, attr, validator.val, model, computed);
+
+        if(result === false || memo === false) {
+          return false;
+        }
+        if (result && !memo) {
+          return _.result(validator, 'msg') || result;
+        }
+        return memo;
+      }, '');
+    };
      + +
      • + + +
    • +
      + +
      + +
      +

      Loops through the model’s attributes and validates them all. Returns and object containing names of invalid attributes as well as error messages.

      - -
      - - 
          var validateModel = function(model, attrs) {
-      var error,
-          invalidAttrs = {},
-          isValid = true,
-          computed = _.clone(attrs),
-          flattened = flatten(attrs);
-
-      _.each(flattened, function(val, attr) {
-        error = validateAttr(model, attr, val, computed);
-        if (error) {
-          invalidAttrs[attr] = error;
-          isValid = false;
-        }
-      });
-
-      return {
-        invalidAttrs: invalidAttrs,
-        isValid: isValid
-      };
-    };
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          var validateModel = function(model, attrs) {
+      var error,
+          invalidAttrs = {},
+          isValid = true,
+          computed = _.clone(attrs),
+          flattened = flatten(attrs);
+
+      _.each(flattened, function(val, attr) {
+        error = validateAttr(model, attr, val, computed);
+        if (error) {
+          invalidAttrs[attr] = error;
+          isValid = false;
+        }
+      });
+
+      return {
+        invalidAttrs: invalidAttrs,
+        isValid: isValid
+      };
+    };
      + +
      • + + +
    • +
      + +
      + +

      Contains the methods that are mixed in on the model when binding

      - -
      - - 
          var mixin = function(view, options) {
-      return {
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          var mixin = function(view, options) {
+      return {
      + +
      • + + +
    • +
      + +
      + +

      Check whether or not a value, or a hash of values passes validation without updating the model

      - -
      - - 
              preValidate: function(attr, value) {
-          var self = this,
-              result = {},
-              error;
-
-          if(_.isObject(attr)){
-            _.each(attr, function(value, key) {
-              error = self.preValidate(key, value);
-              if(error){
-                result[key] = error;
-              }
-            });
-
-            return _.isEmpty(result) ? undefined : result;
-          }
-          else {
-            return validateAttr(this, attr, value, _.extend({}, this.attributes));
-          }
-        },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
              preValidate: function(attr, value) {
+          var self = this,
+              result = {},
+              error;
+
+          if(_.isObject(attr)){
+            _.each(attr, function(value, key) {
+              error = self.preValidate(key, value);
+              if(error){
+                result[key] = error;
+              }
+            });
+
+            return _.isEmpty(result) ? undefined : result;
+          }
+          else {
+            return validateAttr(this, attr, value, _.extend({}, this.attributes));
+          }
+        },
      + +
      • + + +
    • +
      + +
      + +

      Check to see if an attribute, an array of attributes or the entire model is valid. Passing true will force a validation of the model.

      - -
      - - 
              isValid: function(option) {
-          var flattened = flatten(this.attributes);
-
-          if(_.isString(option)){
-            return !validateAttr(this, option, flattened[option], _.extend({}, this.attributes));
-          }
-          if(_.isArray(option)){
-            return _.reduce(option, function(memo, attr) {
-              return memo && !validateAttr(this, attr, flattened[attr], _.extend({}, this.attributes));
-            }, true, this);
-          }
-          if(option === true) {
-            this.validate();
-          }
-          return this.validation ? this._isValid : true;
-        },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
              isValid: function(option) {
+          var flattened = flatten(this.attributes);
+
+          if(_.isString(option)){
+            return !validateAttr(this, option, flattened[option], _.extend({}, this.attributes));
+          }
+          if(_.isArray(option)){
+            return _.reduce(option, function(memo, attr) {
+              return memo && !validateAttr(this, attr, flattened[attr], _.extend({}, this.attributes));
+            }, true, this);
+          }
+          if(option === true) {
+            this.validate();
+          }
+          return this.validation ? this._isValid : true;
+        },
      + +
      • + + +
    • +
      + +
      + +

      This is called by Backbone when it needs to perform validation. You can call it manually without any parameters to validate the entire model.

      - -
      - - 
              validate: function(attrs, setOptions){
-          var model = this,
-              validateAll = !attrs,
-              opt = _.extend({}, options, setOptions),
-              validatedAttrs = getValidatedAttrs(model),
-              allAttrs = _.extend({}, validatedAttrs, model.attributes, attrs),
-              changedAttrs = flatten(attrs || allAttrs),
-
-              result = validateModel(model, allAttrs);
-
-          model._isValid = result.isValid;
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
              validate: function(attrs, setOptions){
+          var model = this,
+              validateAll = !attrs,
+              opt = _.extend({}, options, setOptions),
+              validatedAttrs = getValidatedAttrs(model),
+              allAttrs = _.extend({}, validatedAttrs, model.attributes, attrs),
+              changedAttrs = flatten(attrs || allAttrs),
+
+              result = validateModel(model, allAttrs);
+
+          model._isValid = result.isValid;
      + +
      • + + +
    • +
      + +
      + +

      After validation is performed, loop through all validated attributes and call the valid callbacks so the view is updated.

      - -
      - - 
                _.each(validatedAttrs, function(val, attr){
-            var invalid = result.invalidAttrs.hasOwnProperty(attr);
-            if(!invalid){
-              opt.valid(view, attr, opt.selector);
-            }
-          });
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
                _.each(validatedAttrs, function(val, attr){
+            var invalid = result.invalidAttrs.hasOwnProperty(attr);
+            if(!invalid){
+              opt.valid(view, attr, opt.selector);
+            }
+          });
      + +
      • + + +
    • +
      + +
      + +

      After validation is performed, loop through all validated and changed attributes and call the invalid callback so the view is updated.

      - -
      - - 
                _.each(validatedAttrs, function(val, attr){
-            var invalid = result.invalidAttrs.hasOwnProperty(attr),
-                changed = changedAttrs.hasOwnProperty(attr);
-
-            if(invalid && (changed || validateAll)){
-              opt.invalid(view, attr, result.invalidAttrs[attr], opt.selector);
-            }
-          });
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
                _.each(validatedAttrs, function(val, attr){
+            var invalid = result.invalidAttrs.hasOwnProperty(attr),
+                changed = changedAttrs.hasOwnProperty(attr);
+
+            if(invalid && (changed || validateAll)){
+              opt.invalid(view, attr, result.invalidAttrs[attr], opt.selector);
+            }
+          });
      + +
      • + + +
    • +
      + +
      + +

      Trigger validated events. Need to defer this so the model is actually updated before the event is triggered.

      - -
      - - 
                _.defer(function() {
-            model.trigger('validated', model._isValid, model, result.invalidAttrs);
-            model.trigger('validated:' + (model._isValid ? 'valid' : 'invalid'), model, result.invalidAttrs);
-          });
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
                _.defer(function() {
+            model.trigger('validated', model._isValid, model, result.invalidAttrs);
+            model.trigger('validated:' + (model._isValid ? 'valid' : 'invalid'), model, result.invalidAttrs);
+          });
      + +
      • + + +
    • +
      + +
      + +

      Return any error messages to Backbone, unless the forceUpdate flag is set. Then we do not return anything and fools Backbone to believe the validation was a success. That way Backbone will update the model regardless.

      - -
      - - 
                if (!opt.forceUpdate && _.intersection(_.keys(result.invalidAttrs), _.keys(changedAttrs)).length > 0) {
-            return result.invalidAttrs;
-          }
-        }
-      };
-    };
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
                if (!opt.forceUpdate && _.intersection(_.keys(result.invalidAttrs), _.keys(changedAttrs)).length > 0) {
+            return result.invalidAttrs;
+          }
+        }
+      };
+    };
      + +
      • + + +
    • +
      + +
      + +

      Helper to mix in validation on a model

      - -
      - - 
          var bindModel = function(view, model, options) {
-      _.extend(model, mixin(view, options));
-    };
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          var bindModel = function(view, model, options) {
+      _.extend(model, mixin(view, options));
+    };
      + +
      • + + +
    • +
      + +
      + +

      Removes the methods added to a model

      - -
      - - 
          var unbindModel = function(model) {
-      delete model.validate;
-      delete model.preValidate;
-      delete model.isValid;
-    };
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          var unbindModel = function(model) {
+      delete model.validate;
+      delete model.preValidate;
+      delete model.isValid;
+    };
      + +
      • + + +
    • +
      + +
      + +

      Mix in validation on a model whenever a model is added to a collection

      - -
      - - 
          var collectionAdd = function(model) {
-      bindModel(this.view, model, this.options);
-    };
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          var collectionAdd = function(model) {
+      bindModel(this.view, model, this.options);
+    };
      + +
      • + + +
    • +
      + +
      + +

      Remove validation from a model whenever a model is removed from a collection

      - -
      - - 
          var collectionRemove = function(model) {
-      unbindModel(model);
-    };
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          var collectionRemove = function(model) {
+      unbindModel(model);
+    };
      + +
      • + + +
    • +
      + +
      + +

      Returns the public methods on Backbone.Validation

      - -
      - - 
          return {
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          return {
      + +
      • + + +
    • +
      + +
      + +

      Current version of the library

      - -
      - - 
            version: '0.9.0',
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            version: '0.9.1',
      + +
      • + + +
    • +
      + +
      + +

      Called to configure the default options

      - -
      - - 
            configure: function(options) {
-        _.extend(defaultOptions, options);
-      },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            configure: function(options) {
+        _.extend(defaultOptions, options);
+      },
      + +
      • + + +
    • +
      + +
      + +

      Hooks up validation on a view with a model or collection

      - -
      - - 
            bind: function(view, options) {
-        options = _.extend({}, defaultOptions, defaultCallbacks, options);
-
-        var model = options.model || view.model,
-            collection = options.collection || view.collection;
-
-        if(typeof model === 'undefined' && typeof collection === 'undefined'){
-          throw 'Before you execute the binding your view must have a model or a collection.\n' +
-                'See http://thedersen.com/projects/backbone-validation/#using-form-model-validation for more information.';
-        }
-
-        if(model) {
-          bindModel(view, model, options);
-        }
-        else if(collection) {
-          collection.each(function(model){
-            bindModel(view, model, options);
-          });
-          collection.bind('add', collectionAdd, {view: view, options: options});
-          collection.bind('remove', collectionRemove);
-        }
-      },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            bind: function(view, options) {
+        options = _.extend({}, defaultOptions, defaultCallbacks, options);
+
+        var model = options.model || view.model,
+            collection = options.collection || view.collection;
+
+        if(typeof model === 'undefined' && typeof collection === 'undefined'){
+          throw 'Before you execute the binding your view must have a model or a collection.\n' +
+                'See http://thedersen.com/projects/backbone-validation/#using-form-model-validation for more information.';
+        }
+
+        if(model) {
+          bindModel(view, model, options);
+        }
+        else if(collection) {
+          collection.each(function(model){
+            bindModel(view, model, options);
+          });
+          collection.bind('add', collectionAdd, {view: view, options: options});
+          collection.bind('remove', collectionRemove);
+        }
+      },
      + +
      • + + +
    • +
      + +
      + +

      Removes validation from a view with a model or collection

      - -
      - - 
            unbind: function(view, options) {
-        options = _.extend({}, options);
-        var model = options.model || view.model,
-            collection = options.collection || view.collection;
-
-        if(model) {
-          unbindModel(model);
-        }
-        if(collection) {
-          collection.each(function(model){
-            unbindModel(model);
-          });
-          collection.unbind('add', collectionAdd);
-          collection.unbind('remove', collectionRemove);
-        }
-      },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            unbind: function(view, options) {
+        options = _.extend({}, options);
+        var model = options.model || view.model,
+            collection = options.collection || view.collection;
+
+        if(model) {
+          unbindModel(model);
+        }
+        else if(collection) {
+          collection.each(function(model){
+            unbindModel(model);
+          });
+          collection.unbind('add', collectionAdd);
+          collection.unbind('remove', collectionRemove);
+        }
+      },
      + +
      • + + +
    • +
      + +
      + +

      Used to extend the Backbone.Model.prototype with validation

      - -
      - - 
            mixin: mixin(null, defaultOptions)
-    };
-  }());
      - -
      • - - -
    • -
      - -
      - -
      -

      Callbacks

      - -
      - -
      • - - -
    • -
      - -
      - -
      - -
      - - 
        var defaultCallbacks = Validation.callbacks = {
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            mixin: mixin(null, defaultOptions)
+    };
+  }());
      + +
      • + + +
    • +
      + +
      + +
      +

      Callbacks

      + +
      + + 
      +  var defaultCallbacks = Validation.callbacks = {
      + +
      • + + +
    • +
      + +
      + +

      Gets called when a previously invalid field in the view becomes valid. Removes any error message. Should be overridden with custom functionality.

      - -
      - - 
          valid: function(view, attr, selector) {
-      view.$('[' + selector + '~="' + attr + '"]')
-          .removeClass('invalid')
-          .removeAttr('data-error');
-    },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          valid: function(view, attr, selector) {
+      view.$('[' + selector + '~="' + attr + '"]')
+          .removeClass('invalid')
+          .removeAttr('data-error');
+    },
      + +
      • + + +
    • +
      + +
      + +

      Gets called when a field in the view becomes invalid. Adds a error message. Should be overridden with custom functionality.

      - -
      - - 
          invalid: function(view, attr, error, selector) {
-      view.$('[' + selector + '~="' + attr + '"]')
-          .addClass('invalid')
-          .attr('data-error', error);
-    }
-  };
      - -
      • - - -
    • -
      - -
      - -
      -

      Patterns

      - -
      - -
      • - - -
    • -
      - -
      - -
      - -
      - - 
        var defaultPatterns = Validation.patterns = {
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          invalid: function(view, attr, error, selector) {
+      view.$('[' + selector + '~="' + attr + '"]')
+          .addClass('invalid')
+          .attr('data-error', error);
+    }
+  };
      + +
      • + + +
    • +
      + +
      + +
      +

      Patterns

      + +
      + + 
      +  var defaultPatterns = Validation.patterns = {
      + +
      • + + +
    • +
      + +
      + +

      Matches any digit(s) (i.e. 0-9)

      - -
      - - 
          digits: /^\d+$/,
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          digits: /^\d+$/,
      + +
      • + + +
    • +
      + +
      + +

      Matches any number (e.g. 100.000)

      - -
      - - 
          number: /^-?(?:\d+|\d{1,3}(?:,\d{3})+)(?:\.\d+)?$/,
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          number: /^-?(?:\d+|\d{1,3}(?:,\d{3})+)(?:\.\d+)?$/,
      + +
      • + + +
    • +
      + +
      + +

      Matches a valid email address (e.g. mail@example.com)

      - -
      - - 
          email: /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))$/i,
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          email: /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))$/i,
      + +
      • + + +
    • +
      + +
      + +

      Mathes any valid url (e.g. http://www.xample.com)

      - -
      - - 
          url: /^(https?|ftp):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i
-  };
      - -
      • - - -
    • -
      - -
      - -
      -

      Error messages

      - -
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          url: /^(https?|ftp):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i
+  };
      + +
      • + + +
    • +
      + +
      + +
      +

      Error messages

      + +
      + +
      • + + +
    • +
      + +
      + +

      Error message for the build in validators. {x} gets swapped out with arguments form the validator.

      - -
      - - 
        var defaultMessages = Validation.messages = {
-    required: '{0} is required',
-    acceptance: '{0} must be accepted',
-    min: '{0} must be greater than or equal to {1}',
-    max: '{0} must be less than or equal to {1}',
-    range: '{0} must be between {1} and {2}',
-    length: '{0} must be {1} characters',
-    minLength: '{0} must be at least {1} characters',
-    maxLength: '{0} must be at most {1} characters',
-    rangeLength: '{0} must be between {1} and {2} characters',
-    oneOf: '{0} must be one of: {1}',
-    equalTo: '{0} must be the same as {1}',
-    digits: '{0} must only contain digits',
-    number: '{0} must be a number',
-    email: '{0} must be a valid email',
-    url: '{0} must be a valid url',
-    inlinePattern: '{0} is invalid'
-  };
      - -
      • - - -
    • -
      - -
      - -
      -

      Label formatters

      - -
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
        var defaultMessages = Validation.messages = {
+    required: '{0} is required',
+    acceptance: '{0} must be accepted',
+    min: '{0} must be greater than or equal to {1}',
+    max: '{0} must be less than or equal to {1}',
+    range: '{0} must be between {1} and {2}',
+    length: '{0} must be {1} characters',
+    minLength: '{0} must be at least {1} characters',
+    maxLength: '{0} must be at most {1} characters',
+    rangeLength: '{0} must be between {1} and {2} characters',
+    oneOf: '{0} must be one of: {1}',
+    equalTo: '{0} must be the same as {1}',
+    digits: '{0} must only contain digits',
+    number: '{0} must be a number',
+    email: '{0} must be a valid email',
+    url: '{0} must be a valid url',
+    inlinePattern: '{0} is invalid'
+  };
      + +
      • + + +
    • +
      + +
      + +
      +

      Label formatters

      + +
      + +
      • + + +
    • +
      + +
      + +

      Label formatters are used to convert the attribute name to a more human friendly label when using the built in error messages. Configure which one to use with a call to

      Backbone.Validation.configure({
-  labelFormatter: 'label'
-});
      - -
      - - 
        var defaultLabelFormatters = Validation.labelFormatters = {
      - -
      • - - -
    • -
      - -
      - -
      + labelFormatter: 'label' +}); + +
      + + 
        var defaultLabelFormatters = Validation.labelFormatters = {
      + +
      • + + +
    • +
      + +
      + +

      Returns the attribute name with applying any formatting

      - -
      - - 
          none: function(attrName) {
-      return attrName;
-    },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          none: function(attrName) {
+      return attrName;
+    },
      + +
      • + + +
    • +
      + +
      + +

      Converts attributeName or attribute_name to Attribute name

      - -
      - - 
          sentenceCase: function(attrName) {
-      return attrName.replace(/(?:^\w|[A-Z]|\b\w)/g, function(match, index) {
-        return index === 0 ? match.toUpperCase() : ' ' + match.toLowerCase();
-      }).replace(/_/g, ' ');
-    },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          sentenceCase: function(attrName) {
+      return attrName.replace(/(?:^\w|[A-Z]|\b\w)/g, function(match, index) {
+        return index === 0 ? match.toUpperCase() : ' ' + match.toLowerCase();
+      }).replace(/_/g, ' ');
+    },
      + +
      • + + +
    • +
      + +
      + +

      Looks for a label configured on the model and returns it

      -
       var Model = Backbone.Model.extend({
+
       var Model = Backbone.Model.extend({
    validation: {
      someAttribute: {
-       required: true
+       required: true
      }
    },
 
    labels: {
-     someAttribute: 'Custom label'
+     someAttribute: 'Custom label'
    }
- });
      
-
-
      - - 
          label: function(attrName, model) {
-      return (model.labels && model.labels[attrName]) || defaultLabelFormatters.sentenceCase(attrName, model);
-    }
-  };
      - -
      • - - -
    • -
      - -
      - -
      -

      Built in validators

      - -
      - -
      • - - -
    • -
      - -
      - -
      - -
      - - 
        var defaultValidators = Validation.validators = (function(){
      - -
      • - - -
    • -
      - -
      - -
      + }); +       +
      + + 
          label: function(attrName, model) {
+      return (model.labels && model.labels[attrName]) || defaultLabelFormatters.sentenceCase(attrName, model);
+    }
+  };
      + +
      • + + +
    • +
      + +
      + +
      +

      Built in validators

      + +
      + + 
      +  var defaultValidators = Validation.validators = (function(){
      + +
      • + + +
    • +
      + +
      + +

      Use native trim when defined

      - -
      - - 
          var trim = String.prototype.trim ?
-      function(text) {
-        return text === null ? '' : String.prototype.trim.call(text);
-      } :
-      function(text) {
-        var trimLeft = /^\s+/,
-            trimRight = /\s+$/;
-
-        return text === null ? '' : text.toString().replace(trimLeft, '').replace(trimRight, '');
-      };
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          var trim = String.prototype.trim ?
+      function(text) {
+        return text === null ? '' : String.prototype.trim.call(text);
+      } :
+      function(text) {
+        var trimLeft = /^\s+/,
+            trimRight = /\s+$/;
+
+        return text === null ? '' : text.toString().replace(trimLeft, '').replace(trimRight, '');
+      };
      + +
      • + + +
    • +
      + +
      + +

      Determines whether or not a value is a number

      - -
      - - 
          var isNumber = function(value){
-      return _.isNumber(value) || (_.isString(value) && value.match(defaultPatterns.number));
-    };
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          var isNumber = function(value){
+      return _.isNumber(value) || (_.isString(value) && value.match(defaultPatterns.number));
+    };
      + +
      • + + +
    • +
      + +
      + +

      Determines whether or not a value is empty

      - -
      - - 
          var hasValue = function(value) {
-      return !(_.isNull(value) || _.isUndefined(value) || (_.isString(value) && trim(value) === '') || (_.isArray(value) && _.isEmpty(value)));
-    };
-
-    return {
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
          var hasValue = function(value) {
+      return !(_.isNull(value) || _.isUndefined(value) || (_.isString(value) && trim(value) === '') || (_.isArray(value) && _.isEmpty(value)));
+    };
+
+    return {
      + +
      • + + +
    • +
      + +
      + +

      Function validator Lets you implement a custom function used for validation

      - -
      - - 
            fn: function(value, attr, fn, model, computed) {
-        if(_.isString(fn)){
-          fn = model[fn];
-        }
-        return fn.call(model, value, attr, computed);
-      },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            fn: function(value, attr, fn, model, computed) {
+        if(_.isString(fn)){
+          fn = model[fn];
+        }
+        return fn.call(model, value, attr, computed);
+      },
      + +
      • + + +
    • +
      + +
      + +

      Required validator Validates if the attribute is required or not This can be specified as either a boolean value or a function that returns a boolean value

      - -
      - - 
            required: function(value, attr, required, model, computed) {
-        var isRequired = _.isFunction(required) ? required.call(model, value, attr, computed) : required;
-        if(!isRequired && !hasValue(value)) {
-          return false; // overrides all other validators
-        }
-        if (isRequired && !hasValue(value)) {
-          return this.format(defaultMessages.required, this.formatLabel(attr, model));
-        }
-      },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            required: function(value, attr, required, model, computed) {
+        var isRequired = _.isFunction(required) ? required.call(model, value, attr, computed) : required;
+        if(!isRequired && !hasValue(value)) {
+          return false; // overrides all other validators
+        }
+        if (isRequired && !hasValue(value)) {
+          return this.format(defaultMessages.required, this.formatLabel(attr, model));
+        }
+      },
      + +
      • + + +
    • +
      + +
      + +

      Acceptance validator Validates that something has to be accepted, e.g. terms of use -true or 'true' are valid

      - -
      - - 
            acceptance: function(value, attr, accept, model) {
-        if(value !== 'true' && (!_.isBoolean(value) || value === false)) {
-          return this.format(defaultMessages.acceptance, this.formatLabel(attr, model));
-        }
-      },
      - -
      • - - -
    • -
      - -
      - -
      +true or ‘true’ are valid

      + +
      + + 
            acceptance: function(value, attr, accept, model) {
+        if(value !== 'true' && (!_.isBoolean(value) || value === false)) {
+          return this.format(defaultMessages.acceptance, this.formatLabel(attr, model));
+        }
+      },
      + +
      • + + +
    • +
      + +
      + +

      Min validator Validates that the value has to be a number and equal to or greater than the min value specified

      - -
      - - 
            min: function(value, attr, minValue, model) {
-        if (!isNumber(value) || value < minValue) {
-          return this.format(defaultMessages.min, this.formatLabel(attr, model), minValue);
-        }
-      },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            min: function(value, attr, minValue, model) {
+        if (!isNumber(value) || value < minValue) {
+          return this.format(defaultMessages.min, this.formatLabel(attr, model), minValue);
+        }
+      },
      + +
      • + + +
    • +
      + +
      + +

      Max validator Validates that the value has to be a number and equal to or less than the max value specified

      - -
      - - 
            max: function(value, attr, maxValue, model) {
-        if (!isNumber(value) || value > maxValue) {
-          return this.format(defaultMessages.max, this.formatLabel(attr, model), maxValue);
-        }
-      },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            max: function(value, attr, maxValue, model) {
+        if (!isNumber(value) || value > maxValue) {
+          return this.format(defaultMessages.max, this.formatLabel(attr, model), maxValue);
+        }
+      },
      + +
      • + + +
    • +
      + +
      + +

      Range validator Validates that the value has to be a number and equal to or between the two numbers specified

      - -
      - - 
            range: function(value, attr, range, model) {
-        if(!isNumber(value) || value < range[0] || value > range[1]) {
-          return this.format(defaultMessages.range, this.formatLabel(attr, model), range[0], range[1]);
-        }
-      },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            range: function(value, attr, range, model) {
+        if(!isNumber(value) || value < range[0] || value > range[1]) {
+          return this.format(defaultMessages.range, this.formatLabel(attr, model), range[0], range[1]);
+        }
+      },
      + +
      • + + +
    • +
      + +
      + +

      Length validator Validates that the value has to be a string with length equal to the length value specified

      - -
      - - 
            length: function(value, attr, length, model) {
-        if (!_.isString(value) || value.length !== length) {
-          return this.format(defaultMessages.length, this.formatLabel(attr, model), length);
-        }
-      },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            length: function(value, attr, length, model) {
+        if (!_.isString(value) || value.length !== length) {
+          return this.format(defaultMessages.length, this.formatLabel(attr, model), length);
+        }
+      },
      + +
      • + + +
    • +
      + +
      + +

      Min length validator Validates that the value has to be a string with length equal to or greater than the min length value specified

      - -
      - - 
            minLength: function(value, attr, minLength, model) {
-        if (!_.isString(value) || value.length < minLength) {
-          return this.format(defaultMessages.minLength, this.formatLabel(attr, model), minLength);
-        }
-      },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            minLength: function(value, attr, minLength, model) {
+        if (!_.isString(value) || value.length < minLength) {
+          return this.format(defaultMessages.minLength, this.formatLabel(attr, model), minLength);
+        }
+      },
      + +
      • + + +
    • +
      + +
      + +

      Max length validator Validates that the value has to be a string with length equal to or less than the max length value specified

      - -
      - - 
            maxLength: function(value, attr, maxLength, model) {
-        if (!_.isString(value) || value.length > maxLength) {
-          return this.format(defaultMessages.maxLength, this.formatLabel(attr, model), maxLength);
-        }
-      },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            maxLength: function(value, attr, maxLength, model) {
+        if (!_.isString(value) || value.length > maxLength) {
+          return this.format(defaultMessages.maxLength, this.formatLabel(attr, model), maxLength);
+        }
+      },
      + +
      • + + +
    • +
      + +
      + +

      Range length validator Validates that the value has to be a string and equal to or between the two numbers specified

      - -
      - - 
            rangeLength: function(value, attr, range, model) {
-        if (!_.isString(value) || value.length < range[0] || value.length > range[1]) {
-          return this.format(defaultMessages.rangeLength, this.formatLabel(attr, model), range[0], range[1]);
-        }
-      },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            rangeLength: function(value, attr, range, model) {
+        if (!_.isString(value) || value.length < range[0] || value.length > range[1]) {
+          return this.format(defaultMessages.rangeLength, this.formatLabel(attr, model), range[0], range[1]);
+        }
+      },
      + +
      • + + +
    • +
      + +
      + +

      One of validator Validates that the value has to be equal to one of the elements in the specified array. Case sensitive matching

      - -
      - - 
            oneOf: function(value, attr, values, model) {
-        if(!_.include(values, value)){
-          return this.format(defaultMessages.oneOf, this.formatLabel(attr, model), values.join(', '));
-        }
-      },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            oneOf: function(value, attr, values, model) {
+        if(!_.include(values, value)){
+          return this.format(defaultMessages.oneOf, this.formatLabel(attr, model), values.join(', '));
+        }
+      },
      + +
      • + + +
    • +
      + +
      + +

      Equal to validator Validates that the value has to be equal to the value of the attribute with the name specified

      - -
      - - 
            equalTo: function(value, attr, equalTo, model, computed) {
-        if(value !== computed[equalTo]) {
-          return this.format(defaultMessages.equalTo, this.formatLabel(attr, model), this.formatLabel(equalTo, model));
-        }
-      },
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            equalTo: function(value, attr, equalTo, model, computed) {
+        if(value !== computed[equalTo]) {
+          return this.format(defaultMessages.equalTo, this.formatLabel(attr, model), this.formatLabel(equalTo, model));
+        }
+      },
      + +
      • + + +
    • +
      + +
      + +

      Pattern validator Validates that the value has to match the pattern specified. Can be a regular expression or the name of one of the built in patterns

      - -
      - - 
            pattern: function(value, attr, pattern, model) {
-        if (!hasValue(value) || !value.toString().match(defaultPatterns[pattern] || pattern)) {
-          return this.format(defaultMessages[pattern] || defaultMessages.inlinePattern, this.formatLabel(attr, model), pattern);
-        }
-      }
-    };
-  }());
      - -
      • - - -
    • -
      - -
      - -
      + +
      + + 
            pattern: function(value, attr, pattern, model) {
+        if (!hasValue(value) || !value.toString().match(defaultPatterns[pattern] || pattern)) {
+          return this.format(defaultMessages[pattern] || defaultMessages.inlinePattern, this.formatLabel(attr, model), pattern);
+        }
+      }
+    };
+  }());
      + +
      • + + +
    • +
      + +
      + +

      Set the correct context for all validators when used from within a method validator

      - -
      - - 
        _.each(defaultValidators, function(validator, key){
-    defaultValidators[key] = _.bind(defaultValidators[key], _.extend({}, formatFunctions, defaultValidators));
-  });
-
-  return Validation;
-}(_));
      - -
      • - -
    -
    - + +
    + + 
      _.each(defaultValidators, function(validator, key){
+    defaultValidators[key] = _.bind(defaultValidators[key], _.extend({}, formatFunctions, defaultValidators));
+  });
+
+  return Validation;
+}(_));
    + +
    • + +
+
+ \ No newline at end of file diff --git a/lib/lodash-0.9.2.js b/lib/lodash-0.9.2.js new file mode 100644 index 00000000..9eae931c --- /dev/null +++ b/lib/lodash-0.9.2.js @@ -0,0 +1,4258 @@ +/*! + * Lo-Dash v0.9.2 + * (c) 2012 John-David Dalton + * Based on Underscore.js 1.4.2 + * (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc. + * Available under MIT license + */ +;(function(window, undefined) { + + /** Detect free variable `exports` */ + var freeExports = typeof exports == 'object' && exports; + + /** Detect free variable `global` and use it as `window` */ + var freeGlobal = typeof global == 'object' && global; + if (freeGlobal.global === freeGlobal) { + window = freeGlobal; + } + + /** Used for array and object method references */ + var arrayRef = [], + // avoid a Closure Compiler bug by creatively creating an object + objectRef = new function(){}; + + /** Used to generate unique IDs */ + var idCounter = 0; + + /** Used internally to indicate various things */ + var indicatorObject = objectRef; + + /** Used by `cachedContains` as the default size when optimizations are enabled for large arrays */ + var largeArraySize = 30; + + /** Used to restore the original `_` reference in `noConflict` */ + var oldDash = window._; + + /** Used to detect template delimiter values that require a with-statement */ + var reComplexDelimiter = /[-?+=!~*%&^<>|{(\/]|\[\D|\b(?:delete|in|instanceof|new|typeof|void)\b/; + + /** Used to match HTML entities */ + var reEscapedHtml = /&(?:amp|lt|gt|quot|#x27);/g; + + /** Used to match empty string literals in compiled template source */ + var reEmptyStringLeading = /\b__p \+= '';/g, + reEmptyStringMiddle = /\b(__p \+=) '' \+/g, + reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g; + + /** Used to match regexp flags from their coerced string values */ + var reFlags = /\w*$/; + + /** Used to insert the data object variable into compiled template source */ + var reInsertVariable = /(?:__e|__t = )\(\s*(?![\d\s"']|this\.)/g; + + /** Used to detect if a method is native */ + var reNative = RegExp('^' + + (objectRef.valueOf + '') + .replace(/[.*+?^=!:${}()|[\]\/\\]/g, '\\$&') + .replace(/valueOf|for [^\]]+/g, '.+?') + '$' + ); + + /** + * Used to match ES6 template delimiters + * http://people.mozilla.org/~jorendorff/es6-draft.html#sec-7.8.6 + */ + var reEsTemplate = /\$\{((?:(?=\\?)\\?[\s\S])*?)}/g; + + /** Used to match "interpolate" template delimiters */ + var reInterpolate = /<%=([\s\S]+?)%>/g; + + /** Used to ensure capturing order of template delimiters */ + var reNoMatch = /($^)/; + + /** Used to match HTML characters */ + var reUnescapedHtml = /[&<>"']/g; + + /** Used to match unescaped characters in compiled string literals */ + var reUnescapedString = /['\n\r\t\u2028\u2029\\]/g; + + /** Used to fix the JScript [[DontEnum]] bug */ + var shadowed = [ + 'constructor', 'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', + 'toLocaleString', 'toString', 'valueOf' + ]; + + /** Used to make template sourceURLs easier to identify */ + var templateCounter = 0; + + /** Native method shortcuts */ + var ceil = Math.ceil, + concat = arrayRef.concat, + floor = Math.floor, + getPrototypeOf = reNative.test(getPrototypeOf = Object.getPrototypeOf) && getPrototypeOf, + hasOwnProperty = objectRef.hasOwnProperty, + push = arrayRef.push, + propertyIsEnumerable = objectRef.propertyIsEnumerable, + slice = arrayRef.slice, + toString = objectRef.toString; + + /* Native method shortcuts for methods with the same name as other `lodash` methods */ + var nativeBind = reNative.test(nativeBind = slice.bind) && nativeBind, + nativeIsArray = reNative.test(nativeIsArray = Array.isArray) && nativeIsArray, + nativeIsFinite = window.isFinite, + nativeIsNaN = window.isNaN, + nativeKeys = reNative.test(nativeKeys = Object.keys) && nativeKeys, + nativeMax = Math.max, + nativeMin = Math.min, + nativeRandom = Math.random; + + /** `Object#toString` result shortcuts */ + var argsClass = '[object Arguments]', + arrayClass = '[object Array]', + boolClass = '[object Boolean]', + dateClass = '[object Date]', + funcClass = '[object Function]', + numberClass = '[object Number]', + objectClass = '[object Object]', + regexpClass = '[object RegExp]', + stringClass = '[object String]'; + + /** + * Detect the JScript [[DontEnum]] bug: + * + * In IE < 9 an objects own properties, shadowing non-enumerable ones, are + * made non-enumerable as well. + */ + var hasDontEnumBug; + + /** Detect if own properties are iterated after inherited properties (IE < 9) */ + var iteratesOwnLast; + + /** + * Detect if `Array#shift` and `Array#splice` augment array-like objects + * incorrectly: + * + * Firefox < 10, IE compatibility mode, and IE < 9 have buggy Array `shift()` + * and `splice()` functions that fail to remove the last element, `value[0]`, + * of array-like objects even though the `length` property is set to `0`. + * The `shift()` method is buggy in IE 8 compatibility mode, while `splice()` + * is buggy regardless of mode in IE < 9 and buggy in compatibility mode in IE 9. + */ + var hasObjectSpliceBug = (hasObjectSpliceBug = { '0': 1, 'length': 1 }, + arrayRef.splice.call(hasObjectSpliceBug, 0, 1), hasObjectSpliceBug[0]); + + /** Detect if an `arguments` object's indexes are non-enumerable (IE < 9) */ + var noArgsEnum = true; + + (function() { + var props = []; + function ctor() { this.x = 1; } + ctor.prototype = { 'valueOf': 1, 'y': 1 }; + for (var prop in new ctor) { props.push(prop); } + for (prop in arguments) { noArgsEnum = !prop; } + + hasDontEnumBug = !/valueOf/.test(props); + iteratesOwnLast = props[0] != 'x'; + }(1)); + + /** Detect if an `arguments` object's [[Class]] is unresolvable (Firefox < 4, IE < 9) */ + var noArgsClass = !isArguments(arguments); + + /** Detect if `Array#slice` cannot be used to convert strings to arrays (Opera < 10.52) */ + var noArraySliceOnStrings = slice.call('x')[0] != 'x'; + + /** + * Detect lack of support for accessing string characters by index: + * + * IE < 8 can't access characters by index and IE 8 can only access + * characters by index on string literals. + */ + var noCharByIndex = ('x'[0] + Object('x')[0]) != 'xx'; + + /** + * Detect if a node's [[Class]] is unresolvable (IE < 9) + * and that the JS engine won't error when attempting to coerce an object to + * a string without a `toString` property value of `typeof` "function". + */ + try { + var noNodeClass = ({ 'toString': 0 } + '', toString.call(window.document || 0) == objectClass); + } catch(e) { } + + /* Detect if `Function#bind` exists and is inferred to be fast (all but V8) */ + var isBindFast = nativeBind && /\n|Opera/.test(nativeBind + toString.call(window.opera)); + + /* Detect if `Object.keys` exists and is inferred to be fast (IE, Opera, V8) */ + var isKeysFast = nativeKeys && /^.+$|true/.test(nativeKeys + !!window.attachEvent); + + /** + * Detect if sourceURL syntax is usable without erroring: + * + * The JS engine in Adobe products, like InDesign, will throw a syntax error + * when it encounters a single line comment beginning with the `@` symbol. + * + * The JS engine in Narwhal will generate the function `function anonymous(){//}` + * and throw a syntax error. + * + * Avoid comments beginning `@` symbols in IE because they are part of its + * non-standard conditional compilation support. + * http://msdn.microsoft.com/en-us/library/121hztk3(v=vs.94).aspx + */ + try { + var useSourceURL = (Function('//@')(), !window.attachEvent); + } catch(e) { } + + /** Used to identify object classifications that `_.clone` supports */ + var cloneableClasses = {}; + cloneableClasses[argsClass] = cloneableClasses[funcClass] = false; + cloneableClasses[arrayClass] = cloneableClasses[boolClass] = cloneableClasses[dateClass] = + cloneableClasses[numberClass] = cloneableClasses[objectClass] = cloneableClasses[regexpClass] = + cloneableClasses[stringClass] = true; + + /** Used to determine if values are of the language type Object */ + var objectTypes = { + 'boolean': false, + 'function': true, + 'object': true, + 'number': false, + 'string': false, + 'undefined': false + }; + + /** Used to escape characters for inclusion in compiled string literals */ + var stringEscapes = { + '\\': '\\', + "'": "'", + '\n': 'n', + '\r': 'r', + '\t': 't', + '\u2028': 'u2028', + '\u2029': 'u2029' + }; + + /*--------------------------------------------------------------------------*/ + + /** + * The `lodash` function. + * + * @name _ + * @constructor + * @category Chaining + * @param {Mixed} value The value to wrap in a `lodash` instance. + * @returns {Object} Returns a `lodash` instance. + */ + function lodash(value) { + // exit early if already wrapped + if (value && value.__wrapped__) { + return value; + } + // allow invoking `lodash` without the `new` operator + if (!(this instanceof lodash)) { + return new lodash(value); + } + this.__wrapped__ = value; + } + + /** + * By default, the template delimiters used by Lo-Dash are similar to those in + * embedded Ruby (ERB). Change the following template settings to use alternative + * delimiters. + * + * @static + * @memberOf _ + * @type Object + */ + lodash.templateSettings = { + + /** + * Used to detect `data` property values to be HTML-escaped. + * + * @static + * @memberOf _.templateSettings + * @type RegExp + */ + 'escape': /<%-([\s\S]+?)%>/g, + + /** + * Used to detect code to be evaluated. + * + * @static + * @memberOf _.templateSettings + * @type RegExp + */ + 'evaluate': /<%([\s\S]+?)%>/g, + + /** + * Used to detect `data` property values to inject. + * + * @static + * @memberOf _.templateSettings + * @type RegExp + */ + 'interpolate': reInterpolate, + + /** + * Used to reference the data object in the template text. + * + * @static + * @memberOf _.templateSettings + * @type String + */ + 'variable': '' + }; + + /*--------------------------------------------------------------------------*/ + + /** + * The template used to create iterator functions. + * + * @private + * @param {Obect} data The data object used to populate the text. + * @returns {String} Returns the interpolated text. + */ + var iteratorTemplate = template( + // conditional strict mode + '<% if (obj.useStrict) { %>\'use strict\';\n<% } %>' + + + // the `iteratee` may be reassigned by the `top` snippet + 'var index, value, iteratee = <%= firstArg %>, ' + + // assign the `result` variable an initial value + 'result = <%= firstArg %>;\n' + + // exit early if the first argument is falsey + 'if (!<%= firstArg %>) return result;\n' + + // add code before the iteration branches + '<%= top %>;\n' + + + // array-like iteration: + '<% if (arrayLoop) { %>' + + 'var length = iteratee.length; index = -1;\n' + + 'if (typeof length == \'number\') {' + + + // add support for accessing string characters by index if needed + ' <% if (noCharByIndex) { %>\n' + + ' if (isString(iteratee)) {\n' + + ' iteratee = iteratee.split(\'\')\n' + + ' }' + + ' <% } %>\n' + + + // iterate over the array-like value + ' while (++index < length) {\n' + + ' value = iteratee[index];\n' + + ' <%= arrayLoop %>\n' + + ' }\n' + + '}\n' + + 'else {' + + + // object iteration: + // add support for iterating over `arguments` objects if needed + ' <% } else if (noArgsEnum) { %>\n' + + ' var length = iteratee.length; index = -1;\n' + + ' if (length && isArguments(iteratee)) {\n' + + ' while (++index < length) {\n' + + ' value = iteratee[index += \'\'];\n' + + ' <%= objectLoop %>\n' + + ' }\n' + + ' } else {' + + ' <% } %>' + + + // Firefox < 3.6, Opera > 9.50 - Opera < 11.60, and Safari < 5.1 + // (if the prototype or a property on the prototype has been set) + // incorrectly sets a function's `prototype` property [[Enumerable]] + // value to `true`. Because of this Lo-Dash standardizes on skipping + // the the `prototype` property of functions regardless of its + // [[Enumerable]] value. + ' <% if (!hasDontEnumBug) { %>\n' + + ' var skipProto = typeof iteratee == \'function\' && \n' + + ' propertyIsEnumerable.call(iteratee, \'prototype\');\n' + + ' <% } %>' + + + // iterate own properties using `Object.keys` if it's fast + ' <% if (isKeysFast && useHas) { %>\n' + + ' var ownIndex = -1,\n' + + ' ownProps = objectTypes[typeof iteratee] ? nativeKeys(iteratee) : [],\n' + + ' length = ownProps.length;\n\n' + + ' while (++ownIndex < length) {\n' + + ' index = ownProps[ownIndex];\n' + + ' <% if (!hasDontEnumBug) { %>if (!(skipProto && index == \'prototype\')) {\n <% } %>' + + ' value = iteratee[index];\n' + + ' <%= objectLoop %>\n' + + ' <% if (!hasDontEnumBug) { %>}\n<% } %>' + + ' }' + + + // else using a for-in loop + ' <% } else { %>\n' + + ' for (index in iteratee) {<%' + + ' if (!hasDontEnumBug || useHas) { %>\n if (<%' + + ' if (!hasDontEnumBug) { %>!(skipProto && index == \'prototype\')<% }' + + ' if (!hasDontEnumBug && useHas) { %> && <% }' + + ' if (useHas) { %>hasOwnProperty.call(iteratee, index)<% }' + + ' %>) {' + + ' <% } %>\n' + + ' value = iteratee[index];\n' + + ' <%= objectLoop %>;' + + ' <% if (!hasDontEnumBug || useHas) { %>\n }<% } %>\n' + + ' }' + + ' <% } %>' + + + // Because IE < 9 can't set the `[[Enumerable]]` attribute of an + // existing property and the `constructor` property of a prototype + // defaults to non-enumerable, Lo-Dash skips the `constructor` + // property when it infers it's iterating over a `prototype` object. + ' <% if (hasDontEnumBug) { %>\n\n' + + ' var ctor = iteratee.constructor;\n' + + ' <% for (var k = 0; k < 7; k++) { %>\n' + + ' index = \'<%= shadowed[k] %>\';\n' + + ' if (<%' + + ' if (shadowed[k] == \'constructor\') {' + + ' %>!(ctor && ctor.prototype === iteratee) && <%' + + ' } %>hasOwnProperty.call(iteratee, index)) {\n' + + ' value = iteratee[index];\n' + + ' <%= objectLoop %>\n' + + ' }' + + ' <% } %>' + + ' <% } %>' + + ' <% if (arrayLoop || noArgsEnum) { %>\n}<% } %>\n' + + + // add code to the bottom of the iteration function + '<%= bottom %>;\n' + + // finally, return the `result` + 'return result' + ); + + /** + * Reusable iterator options shared by `forEach`, `forIn`, and `forOwn`. + */ + var forEachIteratorOptions = { + 'args': 'collection, callback, thisArg', + 'top': 'callback = createCallback(callback, thisArg)', + 'arrayLoop': 'if (callback(value, index, collection) === false) return result', + 'objectLoop': 'if (callback(value, index, collection) === false) return result' + }; + + /** Reusable iterator options for `defaults`, and `extend` */ + var extendIteratorOptions = { + 'useHas': false, + 'args': 'object', + 'top': + 'for (var argsIndex = 1, argsLength = arguments.length; argsIndex < argsLength; argsIndex++) {\n' + + ' if (iteratee = arguments[argsIndex]) {', + 'objectLoop': 'result[index] = value', + 'bottom': ' }\n}' + }; + + /** Reusable iterator options for `forIn` and `forOwn` */ + var forOwnIteratorOptions = { + 'arrayLoop': null + }; + + /*--------------------------------------------------------------------------*/ + + /** + * Creates a function optimized to search large arrays for a given `value`, + * starting at `fromIndex`, using strict equality for comparisons, i.e. `===`. + * + * @private + * @param {Array} array The array to search. + * @param {Mixed} value The value to search for. + * @param {Number} [fromIndex=0] The index to search from. + * @param {Number} [largeSize=30] The length at which an array is considered large. + * @returns {Boolean} Returns `true` if `value` is found, else `false`. + */ + function cachedContains(array, fromIndex, largeSize) { + fromIndex || (fromIndex = 0); + + var length = array.length, + isLarge = (length - fromIndex) >= (largeSize || largeArraySize); + + if (isLarge) { + var cache = {}, + index = fromIndex - 1; + + while (++index < length) { + // manually coerce `value` to a string because `hasOwnProperty`, in some + // older versions of Firefox, coerces objects incorrectly + var key = array[index] + ''; + (hasOwnProperty.call(cache, key) ? cache[key] : (cache[key] = [])).push(array[index]); + } + } + return function(value) { + if (isLarge) { + var key = value + ''; + return hasOwnProperty.call(cache, key) && indexOf(cache[key], value) > -1; + } + return indexOf(array, value, fromIndex) > -1; + } + } + + /** + * Used by `_.max` and `_.min` as the default `callback` when a given + * `collection` is a string value. + * + * @private + * @param {String} value The character to inspect. + * @returns {Number} Returns the code unit of given character. + */ + function charAtCallback(value) { + return value.charCodeAt(0); + } + + /** + * Used by `sortBy` to compare transformed `collection` values, stable sorting + * them in ascending order. + * + * @private + * @param {Object} a The object to compare to `b`. + * @param {Object} b The object to compare to `a`. + * @returns {Number} Returns the sort order indicator of `1` or `-1`. + */ + function compareAscending(a, b) { + var ai = a.index, + bi = b.index; + + a = a.criteria; + b = b.criteria; + + // ensure a stable sort in V8 and other engines + // http://code.google.com/p/v8/issues/detail?id=90 + if (a !== b) { + if (a > b || a === undefined) { + return 1; + } + if (a < b || b === undefined) { + return -1; + } + } + return ai < bi ? -1 : 1; + } + + /** + * Creates a function that, when called, invokes `func` with the `this` + * binding of `thisArg` and prepends any `partailArgs` to the arguments passed + * to the bound function. + * + * @private + * @param {Function|String} func The function to bind or the method name. + * @param {Mixed} [thisArg] The `this` binding of `func`. + * @param {Array} partialArgs An array of arguments to be partially applied. + * @returns {Function} Returns the new bound function. + */ + function createBound(func, thisArg, partialArgs) { + var isFunc = isFunction(func), + isPartial = !partialArgs, + methodName = func; + + // juggle arguments + if (isPartial) { + partialArgs = thisArg; + } + + function bound() { + // `Function#bind` spec + // http://es5.github.com/#x15.3.4.5 + var args = arguments, + thisBinding = isPartial ? this : thisArg; + + if (!isFunc) { + func = thisArg[methodName]; + } + if (partialArgs.length) { + args = args.length + ? partialArgs.concat(slice.call(args)) + : partialArgs; + } + if (this instanceof bound) { + // get `func` instance if `bound` is invoked in a `new` expression + noop.prototype = func.prototype; + thisBinding = new noop; + + // mimic the constructor's `return` behavior + // http://es5.github.com/#x13.2.2 + var result = func.apply(thisBinding, args); + return isObject(result) + ? result + : thisBinding + } + return func.apply(thisBinding, args); + } + return bound; + } + + /** + * Produces an iteration callback bound to an optional `thisArg`. If `func` is + * a property name, the callback will return the property value for a given element. + * + * @private + * @param {Function|String} [func=identity|property] The function called per + * iteration or property name to query. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Function} Returns a callback function. + */ + function createCallback(func, thisArg) { + if (!func) { + return identity; + } + if (typeof func != 'function') { + return function(object) { + return object[func]; + }; + } + if (thisArg !== undefined) { + return function(value, index, object) { + return func.call(thisArg, value, index, object); + }; + } + return func; + } + + /** + * Creates compiled iteration functions. + * + * @private + * @param {Object} [options1, options2, ...] The compile options object(s). + * useHas - A boolean to specify using `hasOwnProperty` checks in the object loop. + * args - A string of comma separated arguments the iteration function will accept. + * top - A string of code to execute before the iteration branches. + * arrayLoop - A string of code to execute in the array loop. + * objectLoop - A string of code to execute in the object loop. + * bottom - A string of code to execute after the iteration branches. + * + * @returns {Function} Returns the compiled function. + */ + function createIterator() { + var data = { + 'arrayLoop': '', + 'bottom': '', + 'hasDontEnumBug': hasDontEnumBug, + 'isKeysFast': isKeysFast, + 'objectLoop': '', + 'noArgsEnum': noArgsEnum, + 'noCharByIndex': noCharByIndex, + 'shadowed': shadowed, + 'top': '', + 'useHas': true + }; + + // merge options into a template data object + for (var object, index = 0; object = arguments[index]; index++) { + for (var key in object) { + data[key] = object[key]; + } + } + var args = data.args; + data.firstArg = /^[^,]+/.exec(args)[0]; + + // create the function factory + var factory = Function( + 'createCallback, hasOwnProperty, isArguments, isString, objectTypes, ' + + 'nativeKeys, propertyIsEnumerable', + 'return function(' + args + ') {\n' + iteratorTemplate(data) + '\n}' + ); + // return the compiled function + return factory( + createCallback, hasOwnProperty, isArguments, isString, objectTypes, + nativeKeys, propertyIsEnumerable + ); + } + + /** + * Used by `template` to escape characters for inclusion in compiled + * string literals. + * + * @private + * @param {String} match The matched character to escape. + * @returns {String} Returns the escaped character. + */ + function escapeStringChar(match) { + return '\\' + stringEscapes[match]; + } + + /** + * Used by `escape` to convert characters to HTML entities. + * + * @private + * @param {String} match The matched character to escape. + * @returns {String} Returns the escaped character. + */ + function escapeHtmlChar(match) { + return htmlEscapes[match]; + } + + /** + * A no-operation function. + * + * @private + */ + function noop() { + // no operation performed + } + + /** + * Used by `unescape` to convert HTML entities to characters. + * + * @private + * @param {String} match The matched character to unescape. + * @returns {String} Returns the unescaped character. + */ + function unescapeHtmlChar(match) { + return htmlUnescapes[match]; + } + + /*--------------------------------------------------------------------------*/ + + /** + * Checks if `value` is an `arguments` object. + * + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if the `value` is an `arguments` object, else `false`. + * @example + * + * (function() { return _.isArguments(arguments); })(1, 2, 3); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ + function isArguments(value) { + return toString.call(value) == argsClass; + } + // fallback for browsers that can't detect `arguments` objects by [[Class]] + if (noArgsClass) { + isArguments = function(value) { + return value ? hasOwnProperty.call(value, 'callee') : false; + }; + } + + /** + * Iterates over `object`'s own and inherited enumerable properties, executing + * the `callback` for each property. The `callback` is bound to `thisArg` and + * invoked with three arguments; (value, key, object). Callbacks may exit iteration + * early by explicitly returning `false`. + * + * @static + * @memberOf _ + * @category Objects + * @param {Object} object The object to iterate over. + * @param {Function} callback The function called per iteration. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Object} Returns `object`. + * @example + * + * function Dog(name) { + * this.name = name; + * } + * + * Dog.prototype.bark = function() { + * alert('Woof, woof!'); + * }; + * + * _.forIn(new Dog('Dagny'), function(value, key) { + * alert(key); + * }); + * // => alerts 'name' and 'bark' (order is not guaranteed) + */ + var forIn = createIterator(forEachIteratorOptions, forOwnIteratorOptions, { + 'useHas': false + }); + + /** + * Iterates over `object`'s own enumerable properties, executing the `callback` + * for each property. The `callback` is bound to `thisArg` and invoked with three + * arguments; (value, key, object). Callbacks may exit iteration early by explicitly + * returning `false`. + * + * @static + * @memberOf _ + * @category Objects + * @param {Object} object The object to iterate over. + * @param {Function} callback The function called per iteration. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Object} Returns `object`. + * @example + * + * _.forOwn({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) { + * alert(key); + * }); + * // => alerts '0', '1', and 'length' (order is not guaranteed) + */ + var forOwn = createIterator(forEachIteratorOptions, forOwnIteratorOptions); + + /** + * A fallback implementation of `isPlainObject` that checks if a given `value` + * is an object created by the `Object` constructor, assuming objects created + * by the `Object` constructor have no inherited enumerable properties and that + * there are no `Object.prototype` extensions. + * + * @private + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if `value` is a plain object, else `false`. + */ + function shimIsPlainObject(value) { + // avoid non-objects and false positives for `arguments` objects + var result = false; + if (!(value && typeof value == 'object') || isArguments(value)) { + return result; + } + // IE < 9 presents DOM nodes as `Object` objects except they have `toString` + // methods that are `typeof` "string" and still can coerce nodes to strings. + // Also check that the constructor is `Object` (i.e. `Object instanceof Object`) + var ctor = value.constructor; + if ((!noNodeClass || !(typeof value.toString != 'function' && typeof (value + '') == 'string')) && + (!isFunction(ctor) || ctor instanceof ctor)) { + // IE < 9 iterates inherited properties before own properties. If the first + // iterated property is an object's own property then there are no inherited + // enumerable properties. + if (iteratesOwnLast) { + forIn(value, function(value, key, object) { + result = !hasOwnProperty.call(object, key); + return false; + }); + return result === false; + } + // In most environments an object's own properties are iterated before + // its inherited properties. If the last iterated property is an object's + // own property then there are no inherited enumerable properties. + forIn(value, function(value, key) { + result = key; + }); + return result === false || hasOwnProperty.call(value, result); + } + return result; + } + + /** + * A fallback implementation of `Object.keys` that produces an array of the + * given object's own enumerable property names. + * + * @private + * @param {Object} object The object to inspect. + * @returns {Array} Returns a new array of property names. + */ + function shimKeys(object) { + var result = []; + forOwn(object, function(value, key) { + result.push(key); + }); + return result; + } + + /** + * Used to convert characters to HTML entities: + * + * Though the `>` character is escaped for symmetry, characters like `>` and `/` + * don't require escaping in HTML and have no special meaning unless they're part + * of a tag or an unquoted attribute value. + * http://mathiasbynens.be/notes/ambiguous-ampersands (under "semi-related fun fact") + */ + var htmlEscapes = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''' + }; + + /** Used to convert HTML entities to characters */ + var htmlUnescapes = invert(htmlEscapes); + + /*--------------------------------------------------------------------------*/ + + /** + * Creates a clone of `value`. If `deep` is `true`, all nested objects will + * also be cloned otherwise they will be assigned by reference. Functions, DOM + * nodes, `arguments` objects, and objects created by constructors other than + * `Object` are **not** cloned. + * + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to clone. + * @param {Boolean} deep A flag to indicate a deep clone. + * @param- {Object} [guard] Internally used to allow this method to work with + * others like `_.map` without using their callback `index` argument for `deep`. + * @param- {Array} [stackA=[]] Internally used to track traversed source objects. + * @param- {Array} [stackB=[]] Internally used to associate clones with their + * source counterparts. + * @returns {Mixed} Returns the cloned `value`. + * @example + * + * var stooges = [ + * { 'name': 'moe', 'age': 40 }, + * { 'name': 'larry', 'age': 50 }, + * { 'name': 'curly', 'age': 60 } + * ]; + * + * _.clone({ 'name': 'moe' }); + * // => { 'name': 'moe' } + * + * var shallow = _.clone(stooges); + * shallow[0] === stooges[0]; + * // => true + * + * var deep = _.clone(stooges, true); + * shallow[0] === stooges[0]; + * // => false + */ + function clone(value, deep, guard, stackA, stackB) { + if (value == null) { + return value; + } + if (guard) { + deep = false; + } + // inspect [[Class]] + var isObj = isObject(value); + if (isObj) { + // don't clone `arguments` objects, functions, or non-object Objects + var className = toString.call(value); + if (!cloneableClasses[className] || (noArgsClass && isArguments(value))) { + return value; + } + var isArr = className == arrayClass; + isObj = isArr || (className == objectClass ? isPlainObject(value) : isObj); + } + // shallow clone + if (!isObj || !deep) { + // don't clone functions + return isObj + ? (isArr ? slice.call(value) : extend({}, value)) + : value; + } + + var ctor = value.constructor; + switch (className) { + case boolClass: + case dateClass: + return new ctor(+value); + + case numberClass: + case stringClass: + return new ctor(value); + + case regexpClass: + return ctor(value.source, reFlags.exec(value)); + } + // check for circular references and return corresponding clone + stackA || (stackA = []); + stackB || (stackB = []); + + var length = stackA.length; + while (length--) { + if (stackA[length] == value) { + return stackB[length]; + } + } + // init cloned object + var result = isArr ? ctor(value.length) : {}; + + // add the source value to the stack of traversed objects + // and associate it with its clone + stackA.push(value); + stackB.push(result); + + // recursively populate clone (susceptible to call stack limits) + (isArr ? forEach : forOwn)(value, function(objValue, key) { + result[key] = clone(objValue, deep, null, stackA, stackB); + }); + + return result; + } + + /** + * Assigns enumerable properties of the default object(s) to the `destination` + * object for all `destination` properties that resolve to `null`/`undefined`. + * Once a property is set, additional defaults of the same property will be + * ignored. + * + * @static + * @memberOf _ + * @category Objects + * @param {Object} object The destination object. + * @param {Object} [default1, default2, ...] The default objects. + * @returns {Object} Returns the destination object. + * @example + * + * var iceCream = { 'flavor': 'chocolate' }; + * _.defaults(iceCream, { 'flavor': 'vanilla', 'sprinkles': 'rainbow' }); + * // => { 'flavor': 'chocolate', 'sprinkles': 'rainbow' } + */ + var defaults = createIterator(extendIteratorOptions, { + 'objectLoop': 'if (result[index] == null) ' + extendIteratorOptions.objectLoop + }); + + /** + * Assigns enumerable properties of the source object(s) to the `destination` + * object. Subsequent sources will overwrite propery assignments of previous + * sources. + * + * @static + * @memberOf _ + * @category Objects + * @param {Object} object The destination object. + * @param {Object} [source1, source2, ...] The source objects. + * @returns {Object} Returns the destination object. + * @example + * + * _.extend({ 'name': 'moe' }, { 'age': 40 }); + * // => { 'name': 'moe', 'age': 40 } + */ + var extend = createIterator(extendIteratorOptions); + + /** + * Creates a sorted array of all enumerable properties, own and inherited, + * of `object` that have function values. + * + * @static + * @memberOf _ + * @alias methods + * @category Objects + * @param {Object} object The object to inspect. + * @returns {Array} Returns a new array of property names that have function values. + * @example + * + * _.functions(_); + * // => ['all', 'any', 'bind', 'bindAll', 'clone', 'compact', 'compose', ...] + */ + function functions(object) { + var result = []; + forIn(object, function(value, key) { + if (isFunction(value)) { + result.push(key); + } + }); + return result.sort(); + } + + /** + * Checks if the specified object `property` exists and is a direct property, + * instead of an inherited property. + * + * @static + * @memberOf _ + * @category Objects + * @param {Object} object The object to check. + * @param {String} property The property to check for. + * @returns {Boolean} Returns `true` if key is a direct property, else `false`. + * @example + * + * _.has({ 'a': 1, 'b': 2, 'c': 3 }, 'b'); + * // => true + */ + function has(object, property) { + return object ? hasOwnProperty.call(object, property) : false; + } + + /** + * Creates an object composed of the inverted keys and values of the given `object`. + * + * @static + * @memberOf _ + * @category Objects + * @param {Object} object The object to invert. + * @returns {Object} Returns the created inverted object. + * @example + * + * _.invert({ 'first': 'Moe', 'second': 'Larry', 'third': 'Curly' }); + * // => { 'Moe': 'first', 'Larry': 'second', 'Curly': 'third' } (order is not guaranteed) + */ + function invert(object) { + var result = {}; + forOwn(object, function(value, key) { + result[value] = key; + }); + return result; + } + + /** + * Checks if `value` is an array. + * + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if the `value` is an array, else `false`. + * @example + * + * (function() { return _.isArray(arguments); })(); + * // => false + * + * _.isArray([1, 2, 3]); + * // => true + */ + var isArray = nativeIsArray || function(value) { + return toString.call(value) == arrayClass; + }; + + /** + * Checks if `value` is a boolean (`true` or `false`) value. + * + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if the `value` is a boolean value, else `false`. + * @example + * + * _.isBoolean(null); + * // => false + */ + function isBoolean(value) { + return value === true || value === false || toString.call(value) == boolClass; + } + + /** + * Checks if `value` is a date. + * + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if the `value` is a date, else `false`. + * @example + * + * _.isDate(new Date); + * // => true + */ + function isDate(value) { + return toString.call(value) == dateClass; + } + + /** + * Checks if `value` is a DOM element. + * + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if the `value` is a DOM element, else `false`. + * @example + * + * _.isElement(document.body); + * // => true + */ + function isElement(value) { + return value ? value.nodeType === 1 : false; + } + + /** + * Checks if `value` is empty. Arrays, strings, or `arguments` objects with a + * length of `0` and objects with no own enumerable properties are considered + * "empty". + * + * @static + * @memberOf _ + * @category Objects + * @param {Array|Object|String} value The value to inspect. + * @returns {Boolean} Returns `true` if the `value` is empty, else `false`. + * @example + * + * _.isEmpty([1, 2, 3]); + * // => false + * + * _.isEmpty({}); + * // => true + * + * _.isEmpty(''); + * // => true + */ + function isEmpty(value) { + var result = true; + if (!value) { + return result; + } + var className = toString.call(value), + length = value.length; + + if ((className == arrayClass || className == stringClass || + className == argsClass || (noArgsClass && isArguments(value))) || + (className == objectClass && typeof length == 'number' && isFunction(value.splice))) { + return !length; + } + forOwn(value, function() { + return (result = false); + }); + return result; + } + + /** + * Performs a deep comparison between two values to determine if they are + * equivalent to each other. + * + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} a The value to compare. + * @param {Mixed} b The other value to compare. + * @param- {Object} [stackA=[]] Internally used track traversed `a` objects. + * @param- {Object} [stackB=[]] Internally used track traversed `b` objects. + * @returns {Boolean} Returns `true` if the values are equvalent, else `false`. + * @example + * + * var moe = { 'name': 'moe', 'luckyNumbers': [13, 27, 34] }; + * var clone = { 'name': 'moe', 'luckyNumbers': [13, 27, 34] }; + * + * moe == clone; + * // => false + * + * _.isEqual(moe, clone); + * // => true + */ + function isEqual(a, b, stackA, stackB) { + // exit early for identical values + if (a === b) { + // treat `+0` vs. `-0` as not equal + return a !== 0 || (1 / a == 1 / b); + } + // a strict comparison is necessary because `null == undefined` + if (a == null || b == null) { + return a === b; + } + // compare [[Class]] names + var className = toString.call(a); + if (className != toString.call(b)) { + return false; + } + switch (className) { + case boolClass: + case dateClass: + // coerce dates and booleans to numbers, dates to milliseconds and booleans + // to `1` or `0`, treating invalid dates coerced to `NaN` as not equal + return +a == +b; + + case numberClass: + // treat `NaN` vs. `NaN` as equal + return a != +a + ? b != +b + // but treat `+0` vs. `-0` as not equal + : (a == 0 ? (1 / a == 1 / b) : a == +b); + + case regexpClass: + case stringClass: + // coerce regexes to strings (http://es5.github.com/#x15.10.6.4) + // treat string primitives and their corresponding object instances as equal + return a == b + ''; + } + // exit early, in older browsers, if `a` is array-like but not `b` + var isArr = className == arrayClass || className == argsClass; + if (noArgsClass && !isArr && (isArr = isArguments(a)) && !isArguments(b)) { + return false; + } + if (!isArr) { + // unwrap any `lodash` wrapped values + if (a.__wrapped__ || b.__wrapped__) { + return isEqual(a.__wrapped__ || a, b.__wrapped__ || b); + } + // exit for functions and DOM nodes + if (className != objectClass || (noNodeClass && ( + (typeof a.toString != 'function' && typeof (a + '') == 'string') || + (typeof b.toString != 'function' && typeof (b + '') == 'string')))) { + return false; + } + var ctorA = a.constructor, + ctorB = b.constructor; + + // non `Object` object instances with different constructors are not equal + if (ctorA != ctorB && !( + isFunction(ctorA) && ctorA instanceof ctorA && + isFunction(ctorB) && ctorB instanceof ctorB + )) { + return false; + } + } + // assume cyclic structures are equal + // the algorithm for detecting cyclic structures is adapted from ES 5.1 + // section 15.12.3, abstract operation `JO` (http://es5.github.com/#x15.12.3) + stackA || (stackA = []); + stackB || (stackB = []); + + var length = stackA.length; + while (length--) { + if (stackA[length] == a) { + return stackB[length] == b; + } + } + + var index = -1, + result = true, + size = 0; + + // add `a` and `b` to the stack of traversed objects + stackA.push(a); + stackB.push(b); + + // recursively compare objects and arrays (susceptible to call stack limits) + if (isArr) { + // compare lengths to determine if a deep comparison is necessary + size = a.length; + result = size == b.length; + + if (result) { + // deep compare the contents, ignoring non-numeric properties + while (size--) { + if (!(result = isEqual(a[size], b[size], stackA, stackB))) { + break; + } + } + } + return result; + } + // deep compare objects + for (var key in a) { + if (hasOwnProperty.call(a, key)) { + // count the number of properties. + size++; + // deep compare each property value. + if (!(hasOwnProperty.call(b, key) && isEqual(a[key], b[key], stackA, stackB))) { + return false; + } + } + } + // ensure both objects have the same number of properties + for (key in b) { + // The JS engine in Adobe products, like InDesign, has a bug that causes + // `!size--` to throw an error so it must be wrapped in parentheses. + // https://github.com/documentcloud/underscore/issues/355 + if (hasOwnProperty.call(b, key) && !(size--)) { + // `size` will be `-1` if `b` has more properties than `a` + return false; + } + } + // handle JScript [[DontEnum]] bug + if (hasDontEnumBug) { + while (++index < 7) { + key = shadowed[index]; + if (hasOwnProperty.call(a, key) && + !(hasOwnProperty.call(b, key) && isEqual(a[key], b[key], stackA, stackB))) { + return false; + } + } + } + return true; + } + + /** + * Checks if `value` is, or can be coerced to, a finite number. + * + * Note: This is not the same as native `isFinite`, which will return true for + * booleans and empty strings. See http://es5.github.com/#x15.1.2.5. + * + * @deprecated + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if the `value` is a finite number, else `false`. + * @example + * + * _.isFinite(-101); + * // => true + * + * _.isFinite('10'); + * // => true + * + * _.isFinite(true); + * // => false + * + * _.isFinite(''); + * // => false + * + * _.isFinite(Infinity); + * // => false + */ + function isFinite(value) { + return nativeIsFinite(value) && !nativeIsNaN(parseFloat(value)); + } + + /** + * Checks if `value` is a function. + * + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if the `value` is a function, else `false`. + * @example + * + * _.isFunction(_); + * // => true + */ + function isFunction(value) { + return typeof value == 'function'; + } + // fallback for older versions of Chrome and Safari + if (isFunction(/x/)) { + isFunction = function(value) { + return toString.call(value) == funcClass; + }; + } + + /** + * Checks if `value` is the language type of Object. + * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if the `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(1); + * // => false + */ + function isObject(value) { + // check if the value is the ECMAScript language type of Object + // http://es5.github.com/#x8 + // and avoid a V8 bug + // http://code.google.com/p/v8/issues/detail?id=2291 + return value ? objectTypes[typeof value] : false; + } + + /** + * Checks if `value` is `NaN`. + * + * Note: This is not the same as native `isNaN`, which will return true for + * `undefined` and other values. See http://es5.github.com/#x15.1.2.4. + * + * @deprecated + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if the `value` is `NaN`, else `false`. + * @example + * + * _.isNaN(NaN); + * // => true + * + * _.isNaN(new Number(NaN)); + * // => true + * + * isNaN(undefined); + * // => true + * + * _.isNaN(undefined); + * // => false + */ + function isNaN(value) { + // `NaN` as a primitive is the only value that is not equal to itself + // (perform the [[Class]] check first to avoid errors with some host objects in IE) + return toString.call(value) == numberClass && value != +value + } + + /** + * Checks if `value` is `null`. + * + * @deprecated + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if the `value` is `null`, else `false`. + * @example + * + * _.isNull(null); + * // => true + * + * _.isNull(undefined); + * // => false + */ + function isNull(value) { + return value === null; + } + + /** + * Checks if `value` is a number. + * + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if the `value` is a number, else `false`. + * @example + * + * _.isNumber(8.4 * 5); + * // => true + */ + function isNumber(value) { + return toString.call(value) == numberClass; + } + + /** + * Checks if a given `value` is an object created by the `Object` constructor. + * + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Stooge(name, age) { + * this.name = name; + * this.age = age; + * } + * + * _.isPlainObject(new Stooge('moe', 40)); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'name': 'moe', 'age': 40 }); + * // => true + */ + var isPlainObject = !getPrototypeOf ? shimIsPlainObject : function(value) { + if (!(value && typeof value == 'object')) { + return false; + } + var valueOf = value.valueOf, + objProto = typeof valueOf == 'function' && (objProto = getPrototypeOf(valueOf)) && getPrototypeOf(objProto); + + return objProto + ? value == objProto || (getPrototypeOf(value) == objProto && !isArguments(value)) + : shimIsPlainObject(value); + }; + + /** + * Checks if `value` is a regular expression. + * + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if the `value` is a regular expression, else `false`. + * @example + * + * _.isRegExp(/moe/); + * // => true + */ + function isRegExp(value) { + return toString.call(value) == regexpClass; + } + + /** + * Checks if `value` is a string. + * + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if the `value` is a string, else `false`. + * @example + * + * _.isString('moe'); + * // => true + */ + function isString(value) { + return toString.call(value) == stringClass; + } + + /** + * Checks if `value` is `undefined`. + * + * @deprecated + * @static + * @memberOf _ + * @category Objects + * @param {Mixed} value The value to check. + * @returns {Boolean} Returns `true` if the `value` is `undefined`, else `false`. + * @example + * + * _.isUndefined(void 0); + * // => true + */ + function isUndefined(value) { + return value === undefined; + } + + /** + * Creates an array composed of the own enumerable property names of `object`. + * + * @static + * @memberOf _ + * @category Objects + * @param {Object} object The object to inspect. + * @returns {Array} Returns a new array of property names. + * @example + * + * _.keys({ 'one': 1, 'two': 2, 'three': 3 }); + * // => ['one', 'two', 'three'] (order is not guaranteed) + */ + var keys = !nativeKeys ? shimKeys : function(object) { + // avoid iterating over the `prototype` property + return typeof object == 'function' && propertyIsEnumerable.call(object, 'prototype') + ? shimKeys(object) + : (isObject(object) ? nativeKeys(object) : []); + }; + + /** + * Merges enumerable properties of the source object(s) into the `destination` + * object. Subsequent sources will overwrite propery assignments of previous + * sources. + * + * @static + * @memberOf _ + * @category Objects + * @param {Object} object The destination object. + * @param {Object} [source1, source2, ...] The source objects. + * @param- {Object} [indicator] Internally used to indicate that the `stack` + * argument is an array of traversed objects instead of another source object. + * @param- {Array} [stackA=[]] Internally used to track traversed source objects. + * @param- {Array} [stackB=[]] Internally used to associate values with their + * source counterparts. + * @returns {Object} Returns the destination object. + * @example + * + * var stooges = [ + * { 'name': 'moe' }, + * { 'name': 'larry' } + * ]; + * + * var ages = [ + * { 'age': 40 }, + * { 'age': 50 } + * ]; + * + * _.merge(stooges, ages); + * // => [{ 'name': 'moe', 'age': 40 }, { 'name': 'larry', 'age': 50 }] + */ + function merge(object, source, indicator) { + var args = arguments, + index = 0, + length = 2, + stackA = args[3], + stackB = args[4]; + + if (indicator !== objectRef) { + stackA = []; + stackB = []; + length = args.length; + } + while (++index < length) { + forOwn(args[index], function(source, key) { + var found, isArr, value; + if (source && ((isArr = isArray(source)) || isPlainObject(source))) { + // avoid merging previously merged cyclic sources + var stackLength = stackA.length; + while (stackLength--) { + found = stackA[stackLength] == source; + if (found) { + break; + } + } + if (found) { + object[key] = stackB[stackLength]; + } + else { + // add `source` and associated `value` to the stack of traversed objects + stackA.push(source); + stackB.push(value = (value = object[key], isArr) + ? (isArray(value) ? value : []) + : (isPlainObject(value) ? value : {}) + ); + // recursively merge objects and arrays (susceptible to call stack limits) + object[key] = merge(value, source, objectRef, stackA, stackB); + } + } else if (source != null) { + object[key] = source; + } + }); + } + return object; + } + + /** + * Creates a shallow clone of `object` excluding the specified properties. + * Property names may be specified as individual arguments or as arrays of + * property names. If `callback` is passed, it will be executed for each property + * in the `object`, omitting the properties `callback` returns truthy for. The + * `callback` is bound to `thisArg` and invoked with three arguments; (value, key, object). + * + * @static + * @memberOf _ + * @category Objects + * @param {Object} object The source object. + * @param {Function|String} callback|[prop1, prop2, ...] The properties to omit + * or the function called per iteration. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Object} Returns an object without the omitted properties. + * @example + * + * _.omit({ 'name': 'moe', 'age': 40, 'userid': 'moe1' }, 'userid'); + * // => { 'name': 'moe', 'age': 40 } + * + * _.omit({ 'name': 'moe', '_hint': 'knucklehead', '_seed': '96c4eb' }, function(value, key) { + * return key.charAt(0) == '_'; + * }); + * // => { 'name': 'moe' } + */ + function omit(object, callback, thisArg) { + var isFunc = typeof callback == 'function', + result = {}; + + if (isFunc) { + callback = createCallback(callback, thisArg); + } else { + var props = concat.apply(arrayRef, arguments); + } + forIn(object, function(value, key, object) { + if (isFunc + ? !callback(value, key, object) + : indexOf(props, key, 1) < 0 + ) { + result[key] = value; + } + }); + return result; + } + + /** + * Creates a two dimensional array of the given object's key-value pairs, + * i.e. `[[key1, value1], [key2, value2]]`. + * + * @static + * @memberOf _ + * @category Objects + * @param {Object} object The object to inspect. + * @returns {Array} Returns new array of key-value pairs. + * @example + * + * _.pairs({ 'moe': 30, 'larry': 40, 'curly': 50 }); + * // => [['moe', 30], ['larry', 40], ['curly', 50]] (order is not guaranteed) + */ + function pairs(object) { + var result = []; + forOwn(object, function(value, key) { + result.push([key, value]); + }); + return result; + } + + /** + * Creates a shallow clone of `object` composed of the specified properties. + * Property names may be specified as individual arguments or as arrays of + * property names. If `callback` is passed, it will be executed for each property + * in the `object`, picking the properties `callback` returns truthy for. The + * `callback` is bound to `thisArg` and invoked with three arguments; (value, key, object). + * + * @static + * @memberOf _ + * @category Objects + * @param {Object} object The source object. + * @param {Function|String} callback|[prop1, prop2, ...] The properties to pick + * or the function called per iteration. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Object} Returns an object composed of the picked properties. + * @example + * + * _.pick({ 'name': 'moe', 'age': 40, 'userid': 'moe1' }, 'name', 'age'); + * // => { 'name': 'moe', 'age': 40 } + * + * _.pick({ 'name': 'moe', '_hint': 'knucklehead', '_seed': '96c4eb' }, function(value, key) { + * return key.charAt(0) != '_'; + * }); + * // => { 'name': 'moe' } + */ + function pick(object, callback, thisArg) { + var result = {}; + if (typeof callback != 'function') { + var index = 0, + props = concat.apply(arrayRef, arguments), + length = props.length; + + while (++index < length) { + var key = props[index]; + if (key in object) { + result[key] = object[key]; + } + } + } else { + callback = createCallback(callback, thisArg); + forIn(object, function(value, key, object) { + if (callback(value, key, object)) { + result[key] = value; + } + }); + } + return result; + } + + /** + * Creates an array composed of the own enumerable property values of `object`. + * + * @static + * @memberOf _ + * @category Objects + * @param {Object} object The object to inspect. + * @returns {Array} Returns a new array of property values. + * @example + * + * _.values({ 'one': 1, 'two': 2, 'three': 3 }); + * // => [1, 2, 3] + */ + function values(object) { + var result = []; + forOwn(object, function(value) { + result.push(value); + }); + return result; + } + + /*--------------------------------------------------------------------------*/ + + /** + * Checks if a given `target` element is present in a `collection` using strict + * equality for comparisons, i.e. `===`. If `fromIndex` is negative, it is used + * as the offset from the end of the collection. + * + * @static + * @memberOf _ + * @alias include + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Mixed} target The value to check for. + * @param {Number} [fromIndex=0] The index to search from. + * @returns {Boolean} Returns `true` if the `target` element is found, else `false`. + * @example + * + * _.contains([1, 2, 3], 1); + * // => true + * + * _.contains([1, 2, 3], 1, 2); + * // => false + * + * _.contains({ 'name': 'moe', 'age': 40 }, 'moe'); + * // => true + * + * _.contains('curly', 'ur'); + * // => true + */ + function contains(collection, target, fromIndex) { + var index = -1, + length = collection ? collection.length : 0; + + fromIndex = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex) || 0; + if (typeof length == 'number') { + return (isString(collection) + ? collection.indexOf(target, fromIndex) + : indexOf(collection, target, fromIndex) + ) > -1; + } + return some(collection, function(value) { + return ++index >= fromIndex && value === target; + }); + } + + /** + * Creates an object composed of keys returned from running each element of + * `collection` through a `callback`. The corresponding value of each key is + * the number of times the key was returned by `callback`. The `callback` is + * bound to `thisArg` and invoked with three arguments; (value, index|key, collection). + * The `callback` argument may also be the name of a property to count by (e.g. 'length'). + * + * @static + * @memberOf _ + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Function|String} callback|property The function called per iteration + * or property name to count by. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.countBy([4.3, 6.1, 6.4], function(num) { return Math.floor(num); }); + * // => { '4': 1, '6': 2 } + * + * _.countBy([4.3, 6.1, 6.4], function(num) { return this.floor(num); }, Math); + * // => { '4': 1, '6': 2 } + * + * _.countBy(['one', 'two', 'three'], 'length'); + * // => { '3': 2, '5': 1 } + */ + function countBy(collection, callback, thisArg) { + var result = {}; + callback = createCallback(callback, thisArg); + forEach(collection, function(value, key, collection) { + key = callback(value, key, collection); + (hasOwnProperty.call(result, key) ? result[key]++ : result[key] = 1); + }); + return result; + } + + /** + * Checks if the `callback` returns a truthy value for **all** elements of a + * `collection`. The `callback` is bound to `thisArg` and invoked with three + * arguments; (value, index|key, collection). + * + * @static + * @memberOf _ + * @alias all + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Function} [callback=identity] The function called per iteration. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Boolean} Returns `true` if all elements pass the callback check, + * else `false`. + * @example + * + * _.every([true, 1, null, 'yes'], Boolean); + * // => false + */ + function every(collection, callback, thisArg) { + var result = true; + callback = createCallback(callback, thisArg); + + if (isArray(collection)) { + var index = -1, + length = collection.length; + + while (++index < length) { + if (!(result = !!callback(collection[index], index, collection))) { + break; + } + } + } else { + forEach(collection, function(value, index, collection) { + return (result = !!callback(value, index, collection)); + }); + } + return result; + } + + /** + * Examines each element in a `collection`, returning an array of all elements + * the `callback` returns truthy for. The `callback` is bound to `thisArg` and + * invoked with three arguments; (value, index|key, collection). + * + * @static + * @memberOf _ + * @alias select + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Function} [callback=identity] The function called per iteration. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Array} Returns a new array of elements that passed the callback check. + * @example + * + * var evens = _.filter([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; }); + * // => [2, 4, 6] + */ + function filter(collection, callback, thisArg) { + var result = []; + callback = createCallback(callback, thisArg); + forEach(collection, function(value, index, collection) { + if (callback(value, index, collection)) { + result.push(value); + } + }); + return result; + } + + /** + * Examines each element in a `collection`, returning the first one the `callback` + * returns truthy for. The function returns as soon as it finds an acceptable + * element, and does not iterate over the entire `collection`. The `callback` is + * bound to `thisArg` and invoked with three arguments; (value, index|key, collection). + * + * @static + * @memberOf _ + * @alias detect + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Function} callback The function called per iteration. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Mixed} Returns the element that passed the callback check, + * else `undefined`. + * @example + * + * var even = _.find([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; }); + * // => 2 + */ + function find(collection, callback, thisArg) { + var result; + callback = createCallback(callback, thisArg); + forEach(collection, function(value, index, collection) { + if (callback(value, index, collection)) { + result = value; + return false; + } + }); + return result; + } + + /** + * Iterates over a `collection`, executing the `callback` for each element in + * the `collection`. The `callback` is bound to `thisArg` and invoked with three + * arguments; (value, index|key, collection). Callbacks may exit iteration early + * by explicitly returning `false`. + * + * @static + * @memberOf _ + * @alias each + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Function} callback The function called per iteration. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Array|Object|String} Returns `collection`. + * @example + * + * _([1, 2, 3]).forEach(alert).join(','); + * // => alerts each number and returns '1,2,3' + * + * _.forEach({ 'one': 1, 'two': 2, 'three': 3 }, alert); + * // => alerts each number (order is not guaranteed) + */ + var forEach = createIterator(forEachIteratorOptions); + + /** + * Creates an object composed of keys returned from running each element of + * `collection` through a `callback`. The corresponding value of each key is an + * array of elements passed to `callback` that returned the key. The `callback` + * is bound to `thisArg` and invoked with three arguments; (value, index|key, collection). + * The `callback` argument may also be the name of a property to group by (e.g. 'length'). + * + * @static + * @memberOf _ + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Function|String} callback|property The function called per iteration + * or property name to group by. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.groupBy([4.2, 6.1, 6.4], function(num) { return Math.floor(num); }); + * // => { '4': [4.2], '6': [6.1, 6.4] } + * + * _.groupBy([4.2, 6.1, 6.4], function(num) { return this.floor(num); }, Math); + * // => { '4': [4.2], '6': [6.1, 6.4] } + * + * _.groupBy(['one', 'two', 'three'], 'length'); + * // => { '3': ['one', 'two'], '5': ['three'] } + */ + function groupBy(collection, callback, thisArg) { + var result = {}; + callback = createCallback(callback, thisArg); + forEach(collection, function(value, key, collection) { + key = callback(value, key, collection); + (hasOwnProperty.call(result, key) ? result[key] : result[key] = []).push(value); + }); + return result; + } + + /** + * Invokes the method named by `methodName` on each element in the `collection`, + * returning an array of the results of each invoked method. Additional arguments + * will be passed to each invoked method. If `methodName` is a function it will + * be invoked for, and `this` bound to, each element in the `collection`. + * + * @static + * @memberOf _ + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Function|String} methodName The name of the method to invoke or + * the function invoked per iteration. + * @param {Mixed} [arg1, arg2, ...] Arguments to invoke the method with. + * @returns {Array} Returns a new array of the results of each invoked method. + * @example + * + * _.invoke([[5, 1, 7], [3, 2, 1]], 'sort'); + * // => [[1, 5, 7], [1, 2, 3]] + * + * _.invoke([123, 456], String.prototype.split, ''); + * // => [['1', '2', '3'], ['4', '5', '6']] + */ + function invoke(collection, methodName) { + var args = slice.call(arguments, 2), + isFunc = typeof methodName == 'function', + result = []; + + forEach(collection, function(value) { + result.push((isFunc ? methodName : value[methodName]).apply(value, args)); + }); + return result; + } + + /** + * Creates an array of values by running each element in the `collection` + * through a `callback`. The `callback` is bound to `thisArg` and invoked with + * three arguments; (value, index|key, collection). + * + * @static + * @memberOf _ + * @alias collect + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Function} [callback=identity] The function called per iteration. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Array} Returns a new array of the results of each `callback` execution. + * @example + * + * _.map([1, 2, 3], function(num) { return num * 3; }); + * // => [3, 6, 9] + * + * _.map({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { return num * 3; }); + * // => [3, 6, 9] (order is not guaranteed) + */ + function map(collection, callback, thisArg) { + var index = -1, + length = collection ? collection.length : 0, + result = Array(typeof length == 'number' ? length : 0); + + callback = createCallback(callback, thisArg); + if (isArray(collection)) { + while (++index < length) { + result[index] = callback(collection[index], index, collection); + } + } else { + forEach(collection, function(value, key, collection) { + result[++index] = callback(value, key, collection); + }); + } + return result; + } + + /** + * Retrieves the maximum value of an `array`. If `callback` is passed, + * it will be executed for each value in the `array` to generate the + * criterion by which the value is ranked. The `callback` is bound to + * `thisArg` and invoked with three arguments; (value, index, collection). + * + * @static + * @memberOf _ + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Function} [callback] The function called per iteration. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Mixed} Returns the maximum value. + * @example + * + * var stooges = [ + * { 'name': 'moe', 'age': 40 }, + * { 'name': 'larry', 'age': 50 }, + * { 'name': 'curly', 'age': 60 } + * ]; + * + * _.max(stooges, function(stooge) { return stooge.age; }); + * // => { 'name': 'curly', 'age': 60 }; + */ + function max(collection, callback, thisArg) { + var computed = -Infinity, + index = -1, + length = collection ? collection.length : 0, + result = computed; + + if (callback || !isArray(collection)) { + callback = !callback && isString(collection) + ? charAtCallback + : createCallback(callback, thisArg); + + forEach(collection, function(value, index, collection) { + var current = callback(value, index, collection); + if (current > computed) { + computed = current; + result = value; + } + }); + } else { + while (++index < length) { + if (collection[index] > result) { + result = collection[index]; + } + } + } + return result; + } + + /** + * Retrieves the minimum value of an `array`. If `callback` is passed, + * it will be executed for each value in the `array` to generate the + * criterion by which the value is ranked. The `callback` is bound to `thisArg` + * and invoked with three arguments; (value, index, collection). + * + * @static + * @memberOf _ + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Function} [callback] The function called per iteration. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Mixed} Returns the minimum value. + * @example + * + * _.min([10, 5, 100, 2, 1000]); + * // => 2 + */ + function min(collection, callback, thisArg) { + var computed = Infinity, + index = -1, + length = collection ? collection.length : 0, + result = computed; + + if (callback || !isArray(collection)) { + callback = !callback && isString(collection) + ? charAtCallback + : createCallback(callback, thisArg); + + forEach(collection, function(value, index, collection) { + var current = callback(value, index, collection); + if (current < computed) { + computed = current; + result = value; + } + }); + } else { + while (++index < length) { + if (collection[index] < result) { + result = collection[index]; + } + } + } + return result; + } + + /** + * Retrieves the value of a specified property from all elements in + * the `collection`. + * + * @static + * @memberOf _ + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {String} property The property to pluck. + * @returns {Array} Returns a new array of property values. + * @example + * + * var stooges = [ + * { 'name': 'moe', 'age': 40 }, + * { 'name': 'larry', 'age': 50 }, + * { 'name': 'curly', 'age': 60 } + * ]; + * + * _.pluck(stooges, 'name'); + * // => ['moe', 'larry', 'curly'] + */ + function pluck(collection, property) { + var result = []; + forEach(collection, function(value) { + result.push(value[property]); + }); + return result; + } + + /** + * Boils down a `collection` to a single value. The initial state of the + * reduction is `accumulator` and each successive step of it should be returned + * by the `callback`. The `callback` is bound to `thisArg` and invoked with 4 + * arguments; for arrays they are (accumulator, value, index|key, collection). + * + * @static + * @memberOf _ + * @alias foldl, inject + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Function} callback The function called per iteration. + * @param {Mixed} [accumulator] Initial value of the accumulator. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Mixed} Returns the accumulated value. + * @example + * + * var sum = _.reduce([1, 2, 3], function(memo, num) { return memo + num; }); + * // => 6 + */ + function reduce(collection, callback, accumulator, thisArg) { + var noaccum = arguments.length < 3; + callback = createCallback(callback, thisArg); + forEach(collection, function(value, index, collection) { + accumulator = noaccum + ? (noaccum = false, value) + : callback(accumulator, value, index, collection) + }); + return accumulator; + } + + /** + * The right-associative version of `_.reduce`. + * + * @static + * @memberOf _ + * @alias foldr + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Function} callback The function called per iteration. + * @param {Mixed} [accumulator] Initial value of the accumulator. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Mixed} Returns the accumulated value. + * @example + * + * var list = [[0, 1], [2, 3], [4, 5]]; + * var flat = _.reduceRight(list, function(a, b) { return a.concat(b); }, []); + * // => [4, 5, 2, 3, 0, 1] + */ + function reduceRight(collection, callback, accumulator, thisArg) { + var iteratee = collection, + length = collection ? collection.length : 0, + noaccum = arguments.length < 3; + + if (typeof length != 'number') { + var props = keys(collection); + length = props.length; + } else if (noCharByIndex && isString(collection)) { + iteratee = collection.split(''); + } + forEach(collection, function(value, index, collection) { + index = props ? props[--length] : --length; + accumulator = noaccum + ? (noaccum = false, iteratee[index]) + : callback.call(thisArg, accumulator, iteratee[index], index, collection); + }); + return accumulator; + } + + /** + * The opposite of `_.filter`, this method returns the values of a + * `collection` that `callback` does **not** return truthy for. + * + * @static + * @memberOf _ + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Function} [callback=identity] The function called per iteration. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Array} Returns a new array of elements that did **not** pass the + * callback check. + * @example + * + * var odds = _.reject([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; }); + * // => [1, 3, 5] + */ + function reject(collection, callback, thisArg) { + callback = createCallback(callback, thisArg); + return filter(collection, function(value, index, collection) { + return !callback(value, index, collection); + }); + } + + /** + * Creates an array of shuffled `array` values, using a version of the + * Fisher-Yates shuffle. See http://en.wikipedia.org/wiki/Fisher-Yates_shuffle. + * + * @static + * @memberOf _ + * @category Collections + * @param {Array|Object|String} collection The collection to shuffle. + * @returns {Array} Returns a new shuffled collection. + * @example + * + * _.shuffle([1, 2, 3, 4, 5, 6]); + * // => [4, 1, 6, 3, 5, 2] + */ + function shuffle(collection) { + var index = -1, + result = Array(collection ? collection.length : 0); + + forEach(collection, function(value) { + var rand = floor(nativeRandom() * (++index + 1)); + result[index] = result[rand]; + result[rand] = value; + }); + return result; + } + + /** + * Gets the size of the `collection` by returning `collection.length` for arrays + * and array-like objects or the number of own enumerable properties for objects. + * + * @static + * @memberOf _ + * @category Collections + * @param {Array|Object|String} collection The collection to inspect. + * @returns {Number} Returns `collection.length` or number of own enumerable properties. + * @example + * + * _.size([1, 2]); + * // => 2 + * + * _.size({ 'one': 1, 'two': 2, 'three': 3 }); + * // => 3 + * + * _.size('curly'); + * // => 5 + */ + function size(collection) { + var length = collection ? collection.length : 0; + return typeof length == 'number' ? length : keys(collection).length; + } + + /** + * Checks if the `callback` returns a truthy value for **any** element of a + * `collection`. The function returns as soon as it finds passing value, and + * does not iterate over the entire `collection`. The `callback` is bound to + * `thisArg` and invoked with three arguments; (value, index|key, collection). + * + * @static + * @memberOf _ + * @alias any + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Function} [callback=identity] The function called per iteration. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Boolean} Returns `true` if any element passes the callback check, + * else `false`. + * @example + * + * _.some([null, 0, 'yes', false]); + * // => true + */ + function some(collection, callback, thisArg) { + var result; + callback = createCallback(callback, thisArg); + + if (isArray(collection)) { + var index = -1, + length = collection.length; + + while (++index < length) { + if (result = callback(collection[index], index, collection)) { + break; + } + } + } else { + forEach(collection, function(value, index, collection) { + return !(result = callback(value, index, collection)); + }); + } + return !!result; + } + + /** + * Creates an array, stable sorted in ascending order by the results of + * running each element of `collection` through a `callback`. The `callback` + * is bound to `thisArg` and invoked with three arguments; (value, index|key, collection). + * The `callback` argument may also be the name of a property to sort by (e.g. 'length'). + * + * @static + * @memberOf _ + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Function|String} callback|property The function called per iteration + * or property name to sort by. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Array} Returns a new array of sorted elements. + * @example + * + * _.sortBy([1, 2, 3], function(num) { return Math.sin(num); }); + * // => [3, 1, 2] + * + * _.sortBy([1, 2, 3], function(num) { return this.sin(num); }, Math); + * // => [3, 1, 2] + * + * _.sortBy(['larry', 'brendan', 'moe'], 'length'); + * // => ['moe', 'larry', 'brendan'] + */ + function sortBy(collection, callback, thisArg) { + var result = []; + callback = createCallback(callback, thisArg); + forEach(collection, function(value, index, collection) { + result.push({ + 'criteria': callback(value, index, collection), + 'index': index, + 'value': value + }); + }); + + var length = result.length; + result.sort(compareAscending); + while (length--) { + result[length] = result[length].value; + } + return result; + } + + /** + * Converts the `collection`, to an array. + * + * @static + * @memberOf _ + * @category Collections + * @param {Array|Object|String} collection The collection to convert. + * @returns {Array} Returns the new converted array. + * @example + * + * (function() { return _.toArray(arguments).slice(1); })(1, 2, 3, 4); + * // => [2, 3, 4] + */ + function toArray(collection) { + if (collection && typeof collection.length == 'number') { + return (noArraySliceOnStrings ? isString(collection) : typeof collection == 'string') + ? collection.split('') + : slice.call(collection); + } + return values(collection); + } + + /** + * Examines each element in a `collection`, returning an array of all elements + * that contain the given `properties`. + * + * @static + * @memberOf _ + * @category Collections + * @param {Array|Object|String} collection The collection to iterate over. + * @param {Object} properties The object of property values to filter by. + * @returns {Array} Returns a new array of elements that contain the given `properties`. + * @example + * + * var stooges = [ + * { 'name': 'moe', 'age': 40 }, + * { 'name': 'larry', 'age': 50 }, + * { 'name': 'curly', 'age': 60 } + * ]; + * + * _.where(stooges, { 'age': 40 }); + * // => [{ 'name': 'moe', 'age': 40 }] + */ + function where(collection, properties) { + var props = []; + forIn(properties, function(value, prop) { + props.push(prop); + }); + return filter(collection, function(object) { + var length = props.length; + while (length--) { + var result = object[props[length]] === properties[props[length]]; + if (!result) { + break; + } + } + return !!result; + }); + } + + /*--------------------------------------------------------------------------*/ + + /** + * Creates an array with all falsey values of `array` removed. The values + * `false`, `null`, `0`, `""`, `undefined` and `NaN` are all falsey. + * + * @static + * @memberOf _ + * @category Arrays + * @param {Array} array The array to compact. + * @returns {Array} Returns a new filtered array. + * @example + * + * _.compact([0, 1, false, 2, '', 3]); + * // => [1, 2, 3] + */ + function compact(array) { + var index = -1, + length = array ? array.length : 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value) { + result.push(value); + } + } + return result; + } + + /** + * Creates an array of `array` elements not present in the other arrays + * using strict equality for comparisons, i.e. `===`. + * + * @static + * @memberOf _ + * @category Arrays + * @param {Array} array The array to process. + * @param {Array} [array1, array2, ...] Arrays to check. + * @returns {Array} Returns a new array of `array` elements not present in the + * other arrays. + * @example + * + * _.difference([1, 2, 3, 4, 5], [5, 2, 10]); + * // => [1, 3, 4] + */ + function difference(array) { + var index = -1, + length = array ? array.length : 0, + flattened = concat.apply(arrayRef, arguments), + contains = cachedContains(flattened, length), + result = []; + + while (++index < length) { + var value = array[index]; + if (!contains(value)) { + result.push(value); + } + } + return result; + } + + /** + * Gets the first element of the `array`. Pass `n` to return the first `n` + * elements of the `array`. + * + * @static + * @memberOf _ + * @alias head, take + * @category Arrays + * @param {Array} array The array to query. + * @param {Number} [n] The number of elements to return. + * @param- {Object} [guard] Internally used to allow this method to work with + * others like `_.map` without using their callback `index` argument for `n`. + * @returns {Mixed} Returns the first element or an array of the first `n` + * elements of `array`. + * @example + * + * _.first([5, 4, 3, 2, 1]); + * // => 5 + */ + function first(array, n, guard) { + if (array) { + return (n == null || guard) ? array[0] : slice.call(array, 0, n); + } + } + + /** + * Flattens a nested array (the nesting can be to any depth). If `shallow` is + * truthy, `array` will only be flattened a single level. + * + * @static + * @memberOf _ + * @category Arrays + * @param {Array} array The array to compact. + * @param {Boolean} shallow A flag to indicate only flattening a single level. + * @returns {Array} Returns a new flattened array. + * @example + * + * _.flatten([1, [2], [3, [[4]]]]); + * // => [1, 2, 3, 4]; + * + * _.flatten([1, [2], [3, [[4]]]], true); + * // => [1, 2, 3, [[4]]]; + */ + function flatten(array, shallow) { + var index = -1, + length = array ? array.length : 0, + result = []; + + while (++index < length) { + var value = array[index]; + + // recursively flatten arrays (susceptible to call stack limits) + if (isArray(value)) { + push.apply(result, shallow ? value : flatten(value)); + } else { + result.push(value); + } + } + return result; + } + + /** + * Gets the index at which the first occurrence of `value` is found using + * strict equality for comparisons, i.e. `===`. If the `array` is already + * sorted, passing `true` for `fromIndex` will run a faster binary search. + * + * @static + * @memberOf _ + * @category Arrays + * @param {Array} array The array to search. + * @param {Mixed} value The value to search for. + * @param {Boolean|Number} [fromIndex=0] The index to search from or `true` to + * perform a binary search on a sorted `array`. + * @returns {Number} Returns the index of the matched value or `-1`. + * @example + * + * _.indexOf([1, 2, 3, 1, 2, 3], 2); + * // => 1 + * + * _.indexOf([1, 2, 3, 1, 2, 3], 2, 3); + * // => 4 + * + * _.indexOf([1, 1, 2, 2, 3, 3], 2, true); + * // => 2 + */ + function indexOf(array, value, fromIndex) { + var index = -1, + length = array ? array.length : 0; + + if (typeof fromIndex == 'number') { + index = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex || 0) - 1; + } else if (fromIndex) { + index = sortedIndex(array, value); + return array[index] === value ? index : -1; + } + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; + } + + /** + * Gets all but the last element of `array`. Pass `n` to exclude the last `n` + * elements from the result. + * + * @static + * @memberOf _ + * @category Arrays + * @param {Array} array The array to query. + * @param {Number} [n=1] The number of elements to exclude. + * @param- {Object} [guard] Internally used to allow this method to work with + * others like `_.map` without using their callback `index` argument for `n`. + * @returns {Array} Returns all but the last element or `n` elements of `array`. + * @example + * + * _.initial([3, 2, 1]); + * // => [3, 2] + */ + function initial(array, n, guard) { + return array + ? slice.call(array, 0, -((n == null || guard) ? 1 : n)) + : []; + } + + /** + * Computes the intersection of all the passed-in arrays using strict equality + * for comparisons, i.e. `===`. + * + * @static + * @memberOf _ + * @category Arrays + * @param {Array} [array1, array2, ...] Arrays to process. + * @returns {Array} Returns a new array of unique elements, in order, that are + * present in **all** of the arrays. + * @example + * + * _.intersection([1, 2, 3], [101, 2, 1, 10], [2, 1]); + * // => [1, 2] + */ + function intersection(array) { + var args = arguments, + argsLength = args.length, + cache = {}, + result = []; + + forEach(array, function(value) { + if (indexOf(result, value) < 0) { + var length = argsLength; + while (--length) { + if (!(cache[length] || (cache[length] = cachedContains(args[length])))(value)) { + return; + } + } + result.push(value); + } + }); + return result; + } + + /** + * Gets the last element of the `array`. Pass `n` to return the last `n` + * elements of the `array`. + * + * @static + * @memberOf _ + * @category Arrays + * @param {Array} array The array to query. + * @param {Number} [n] The number of elements to return. + * @param- {Object} [guard] Internally used to allow this method to work with + * others like `_.map` without using their callback `index` argument for `n`. + * @returns {Mixed} Returns the last element or an array of the last `n` + * elements of `array`. + * @example + * + * _.last([3, 2, 1]); + * // => 1 + */ + function last(array, n, guard) { + if (array) { + var length = array.length; + return (n == null || guard) ? array[length - 1] : slice.call(array, -n || length); + } + } + + /** + * Gets the index at which the last occurrence of `value` is found using strict + * equality for comparisons, i.e. `===`. If `fromIndex` is negative, it is used + * as the offset from the end of the collection. + * + * @static + * @memberOf _ + * @category Arrays + * @param {Array} array The array to search. + * @param {Mixed} value The value to search for. + * @param {Number} [fromIndex=array.length-1] The index to search from. + * @returns {Number} Returns the index of the matched value or `-1`. + * @example + * + * _.lastIndexOf([1, 2, 3, 1, 2, 3], 2); + * // => 4 + * + * _.lastIndexOf([1, 2, 3, 1, 2, 3], 2, 3); + * // => 1 + */ + function lastIndexOf(array, value, fromIndex) { + var index = array ? array.length : 0; + if (typeof fromIndex == 'number') { + index = (fromIndex < 0 ? nativeMax(0, index + fromIndex) : nativeMin(fromIndex, index - 1)) + 1; + } + while (index--) { + if (array[index] === value) { + return index; + } + } + return -1; + } + + /** + * Creates an object composed from arrays of `keys` and `values`. Pass either + * a single two dimensional array, i.e. `[[key1, value1], [key2, value2]]`, or + * two arrays, one of `keys` and one of corresponding `values`. + * + * @static + * @memberOf _ + * @category Arrays + * @param {Array} keys The array of keys. + * @param {Array} [values=[]] The array of values. + * @returns {Object} Returns an object composed of the given keys and + * corresponding values. + * @example + * + * _.object(['moe', 'larry', 'curly'], [30, 40, 50]); + * // => { 'moe': 30, 'larry': 40, 'curly': 50 } + */ + function object(keys, values) { + var index = -1, + length = keys ? keys.length : 0, + result = {}; + + while (++index < length) { + var key = keys[index]; + if (values) { + result[key] = values[index]; + } else { + result[key[0]] = key[1]; + } + } + return result; + } + + /** + * Creates an array of numbers (positive and/or negative) progressing from + * `start` up to but not including `stop`. This method is a port of Python's + * `range()` function. See http://docs.python.org/library/functions.html#range. + * + * @static + * @memberOf _ + * @category Arrays + * @param {Number} [start=0] The start of the range. + * @param {Number} end The end of the range. + * @param {Number} [step=1] The value to increment or descrement by. + * @returns {Array} Returns a new range array. + * @example + * + * _.range(10); + * // => [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] + * + * _.range(1, 11); + * // => [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] + * + * _.range(0, 30, 5); + * // => [0, 5, 10, 15, 20, 25] + * + * _.range(0, -10, -1); + * // => [0, -1, -2, -3, -4, -5, -6, -7, -8, -9] + * + * _.range(0); + * // => [] + */ + function range(start, end, step) { + start = +start || 0; + step = +step || 1; + + if (end == null) { + end = start; + start = 0; + } + // use `Array(length)` so V8 will avoid the slower "dictionary" mode + // http://www.youtube.com/watch?v=XAqIpGU8ZZk#t=16m27s + var index = -1, + length = nativeMax(0, ceil((end - start) / step)), + result = Array(length); + + while (++index < length) { + result[index] = start; + start += step; + } + return result; + } + + /** + * The opposite of `_.initial`, this method gets all but the first value of + * `array`. Pass `n` to exclude the first `n` values from the result. + * + * @static + * @memberOf _ + * @alias drop, tail + * @category Arrays + * @param {Array} array The array to query. + * @param {Number} [n=1] The number of elements to exclude. + * @param- {Object} [guard] Internally used to allow this method to work with + * others like `_.map` without using their callback `index` argument for `n`. + * @returns {Array} Returns all but the first value or `n` values of `array`. + * @example + * + * _.rest([3, 2, 1]); + * // => [2, 1] + */ + function rest(array, n, guard) { + return array + ? slice.call(array, (n == null || guard) ? 1 : n) + : []; + } + + /** + * Uses a binary search to determine the smallest index at which the `value` + * should be inserted into `array` in order to maintain the sort order of the + * sorted `array`. If `callback` is passed, it will be executed for `value` and + * each element in `array` to compute their sort ranking. The `callback` is + * bound to `thisArg` and invoked with one argument; (value). The `callback` + * argument may also be the name of a property to order by. + * + * @static + * @memberOf _ + * @category Arrays + * @param {Array} array The array to iterate over. + * @param {Mixed} value The value to evaluate. + * @param {Function|String} [callback=identity|property] The function called + * per iteration or property name to order by. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Number} Returns the index at which the value should be inserted + * into `array`. + * @example + * + * _.sortedIndex([20, 30, 50], 40); + * // => 2 + * + * _.sortedIndex([{ 'x': 20 }, { 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x'); + * // => 2 + * + * var dict = { + * 'wordToNumber': { 'twenty': 20, 'thirty': 30, 'fourty': 40, 'fifty': 50 } + * }; + * + * _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) { + * return dict.wordToNumber[word]; + * }); + * // => 2 + * + * _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) { + * return this.wordToNumber[word]; + * }, dict); + * // => 2 + */ + function sortedIndex(array, value, callback, thisArg) { + var low = 0, + high = array ? array.length : low; + + // explicitly reference `identity` for better engine inlining + callback = callback ? createCallback(callback, thisArg) : identity; + value = callback(value); + while (low < high) { + var mid = (low + high) >>> 1; + callback(array[mid]) < value + ? low = mid + 1 + : high = mid; + } + return low; + } + + /** + * Computes the union of the passed-in arrays using strict equality for + * comparisons, i.e. `===`. + * + * @static + * @memberOf _ + * @category Arrays + * @param {Array} [array1, array2, ...] Arrays to process. + * @returns {Array} Returns a new array of unique values, in order, that are + * present in one or more of the arrays. + * @example + * + * _.union([1, 2, 3], [101, 2, 1, 10], [2, 1]); + * // => [1, 2, 3, 101, 10] + */ + function union() { + return uniq(concat.apply(arrayRef, arguments)); + } + + /** + * Creates a duplicate-value-free version of the `array` using strict equality + * for comparisons, i.e. `===`. If the `array` is already sorted, passing `true` + * for `isSorted` will run a faster algorithm. If `callback` is passed, each + * element of `array` is passed through a callback` before uniqueness is computed. + * The `callback` is bound to `thisArg` and invoked with three arguments; (value, index, array). + * + * @static + * @memberOf _ + * @alias unique + * @category Arrays + * @param {Array} array The array to process. + * @param {Boolean} [isSorted=false] A flag to indicate that the `array` is already sorted. + * @param {Function} [callback=identity] The function called per iteration. + * @param {Mixed} [thisArg] The `this` binding of `callback`. + * @returns {Array} Returns a duplicate-value-free array. + * @example + * + * _.uniq([1, 2, 1, 3, 1]); + * // => [1, 2, 3] + * + * _.uniq([1, 1, 2, 2, 3], true); + * // => [1, 2, 3] + * + * _.uniq([1, 2, 1.5, 3, 2.5], function(num) { return Math.floor(num); }); + * // => [1, 2, 3] + * + * _.uniq([1, 2, 1.5, 3, 2.5], function(num) { return this.floor(num); }, Math); + * // => [1, 2, 3] + */ + function uniq(array, isSorted, callback, thisArg) { + var index = -1, + length = array ? array.length : 0, + result = [], + seen = result; + + // juggle arguments + if (typeof isSorted == 'function') { + thisArg = callback; + callback = isSorted; + isSorted = false; + } + // init value cache for large arrays + var isLarge = !isSorted && length > 74; + if (isLarge) { + var cache = {}; + } + if (callback) { + seen = []; + callback = createCallback(callback, thisArg); + } + while (++index < length) { + var value = array[index], + computed = callback ? callback(value, index, array) : value; + + if (isLarge) { + // manually coerce `computed` to a string because `hasOwnProperty`, in + // some older versions of Firefox, coerces objects incorrectly + seen = hasOwnProperty.call(cache, computed + '') ? cache[computed] : (cache[computed] = []); + } + if (isSorted + ? !index || seen[seen.length - 1] !== computed + : indexOf(seen, computed) < 0 + ) { + if (callback || isLarge) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * Creates an array with all occurrences of the passed values removed using + * strict equality for comparisons, i.e. `===`. + * + * @static + * @memberOf _ + * @category Arrays + * @param {Array} array The array to filter. + * @param {Mixed} [value1, value2, ...] Values to remove. + * @returns {Array} Returns a new filtered array. + * @example + * + * _.without([1, 2, 1, 0, 3, 1, 4], 0, 1); + * // => [2, 3, 4] + */ + function without(array) { + var index = -1, + length = array ? array.length : 0, + contains = cachedContains(arguments, 1, 20), + result = []; + + while (++index < length) { + var value = array[index]; + if (!contains(value)) { + result.push(value); + } + } + return result; + } + + /** + * Groups the elements of each array at their corresponding indexes. Useful for + * separate data sources that are coordinated through matching array indexes. + * For a matrix of nested arrays, `_.zip.apply(...)` can transpose the matrix + * in a similar fashion. + * + * @static + * @memberOf _ + * @category Arrays + * @param {Array} [array1, array2, ...] Arrays to process. + * @returns {Array} Returns a new array of grouped elements. + * @example + * + * _.zip(['moe', 'larry', 'curly'], [30, 40, 50], [true, false, false]); + * // => [['moe', 30, true], ['larry', 40, false], ['curly', 50, false]] + */ + function zip(array) { + var index = -1, + length = array ? max(pluck(arguments, 'length')) : 0, + result = Array(length); + + while (++index < length) { + result[index] = pluck(arguments, index); + } + return result; + } + + /*--------------------------------------------------------------------------*/ + + /** + * Creates a function that is restricted to executing `func` only after it is + * called `n` times. The `func` is executed with the `this` binding of the + * created function. + * + * @static + * @memberOf _ + * @category Functions + * @param {Number} n The number of times the function must be called before + * it is executed. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var renderNotes = _.after(notes.length, render); + * _.forEach(notes, function(note) { + * note.asyncSave({ 'success': renderNotes }); + * }); + * // `renderNotes` is run once, after all notes have saved + */ + function after(n, func) { + if (n < 1) { + return func(); + } + return function() { + if (--n < 1) { + return func.apply(this, arguments); + } + }; + } + + /** + * Creates a function that, when called, invokes `func` with the `this` + * binding of `thisArg` and prepends any additional `bind` arguments to those + * passed to the bound function. + * + * @static + * @memberOf _ + * @category Functions + * @param {Function} func The function to bind. + * @param {Mixed} [thisArg] The `this` binding of `func`. + * @param {Mixed} [arg1, arg2, ...] Arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * var func = function(greeting) { + * return greeting + ' ' + this.name; + * }; + * + * func = _.bind(func, { 'name': 'moe' }, 'hi'); + * func(); + * // => 'hi moe' + */ + function bind(func, thisArg) { + // use `Function#bind` if it exists and is fast + // (in V8 `Function#bind` is slower except when partially applied) + return isBindFast || (nativeBind && arguments.length > 2) + ? nativeBind.call.apply(nativeBind, arguments) + : createBound(func, thisArg, slice.call(arguments, 2)); + } + + /** + * Binds methods on `object` to `object`, overwriting the existing method. + * If no method names are provided, all the function properties of `object` + * will be bound. + * + * @static + * @memberOf _ + * @category Functions + * @param {Object} object The object to bind and assign the bound methods to. + * @param {String} [methodName1, methodName2, ...] Method names on the object to bind. + * @returns {Object} Returns `object`. + * @example + * + * var buttonView = { + * 'label': 'lodash', + * 'onClick': function() { alert('clicked: ' + this.label); } + * }; + * + * _.bindAll(buttonView); + * jQuery('#lodash_button').on('click', buttonView.onClick); + * // => When the button is clicked, `this.label` will have the correct value + */ + function bindAll(object) { + var funcs = arguments, + index = funcs.length > 1 ? 0 : (funcs = functions(object), -1), + length = funcs.length; + + while (++index < length) { + var key = funcs[index]; + object[key] = bind(object[key], object); + } + return object; + } + + /** + * Creates a function that is the composition of the passed functions, + * where each function consumes the return value of the function that follows. + * In math terms, composing the functions `f()`, `g()`, and `h()` produces `f(g(h()))`. + * Each function is executed with the `this` binding of the composed function. + * + * @static + * @memberOf _ + * @category Functions + * @param {Function} [func1, func2, ...] Functions to compose. + * @returns {Function} Returns the new composed function. + * @example + * + * var greet = function(name) { return 'hi: ' + name; }; + * var exclaim = function(statement) { return statement + '!'; }; + * var welcome = _.compose(exclaim, greet); + * welcome('moe'); + * // => 'hi: moe!' + */ + function compose() { + var funcs = arguments; + return function() { + var args = arguments, + length = funcs.length; + + while (length--) { + args = [funcs[length].apply(this, args)]; + } + return args[0]; + }; + } + + /** + * Creates a function that will delay the execution of `func` until after + * `wait` milliseconds have elapsed since the last time it was invoked. Pass + * `true` for `immediate` to cause debounce to invoke `func` on the leading, + * instead of the trailing, edge of the `wait` timeout. Subsequent calls to + * the debounced function will return the result of the last `func` call. + * + * @static + * @memberOf _ + * @category Functions + * @param {Function} func The function to debounce. + * @param {Number} wait The number of milliseconds to delay. + * @param {Boolean} immediate A flag to indicate execution is on the leading + * edge of the timeout. + * @returns {Function} Returns the new debounced function. + * @example + * + * var lazyLayout = _.debounce(calculateLayout, 300); + * jQuery(window).on('resize', lazyLayout); + */ + function debounce(func, wait, immediate) { + var args, + result, + thisArg, + timeoutId; + + function delayed() { + timeoutId = null; + if (!immediate) { + result = func.apply(thisArg, args); + } + } + return function() { + var isImmediate = immediate && !timeoutId; + args = arguments; + thisArg = this; + + clearTimeout(timeoutId); + timeoutId = setTimeout(delayed, wait); + + if (isImmediate) { + result = func.apply(thisArg, args); + } + return result; + }; + } + + /** + * Executes the `func` function after `wait` milliseconds. Additional arguments + * will be passed to `func` when it is invoked. + * + * @static + * @memberOf _ + * @category Functions + * @param {Function} func The function to delay. + * @param {Number} wait The number of milliseconds to delay execution. + * @param {Mixed} [arg1, arg2, ...] Arguments to invoke the function with. + * @returns {Number} Returns the `setTimeout` timeout id. + * @example + * + * var log = _.bind(console.log, console); + * _.delay(log, 1000, 'logged later'); + * // => 'logged later' (Appears after one second.) + */ + function delay(func, wait) { + var args = slice.call(arguments, 2); + return setTimeout(function() { func.apply(undefined, args); }, wait); + } + + /** + * Defers executing the `func` function until the current call stack has cleared. + * Additional arguments will be passed to `func` when it is invoked. + * + * @static + * @memberOf _ + * @category Functions + * @param {Function} func The function to defer. + * @param {Mixed} [arg1, arg2, ...] Arguments to invoke the function with. + * @returns {Number} Returns the `setTimeout` timeout id. + * @example + * + * _.defer(function() { alert('deferred'); }); + * // returns from the function before `alert` is called + */ + function defer(func) { + var args = slice.call(arguments, 1); + return setTimeout(function() { func.apply(undefined, args); }, 1); + } + + /** + * Creates a function that, when called, invokes `object[methodName]` and + * prepends any additional `lateBind` arguments to those passed to the bound + * function. This method differs from `_.bind` by allowing bound functions to + * reference methods that will be redefined or don't yet exist. + * + * @static + * @memberOf _ + * @category Functions + * @param {Object} object The object the method belongs to. + * @param {String} methodName The method name. + * @param {Mixed} [arg1, arg2, ...] Arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * var object = { + * 'name': 'moe', + * 'greet': function(greeting) { + * return greeting + ' ' + this.name; + * } + * }; + * + * var func = _.lateBind(object, 'greet', 'hi'); + * func(); + * // => 'hi moe' + * + * object.greet = function(greeting) { + * return greeting + ', ' + this.name + '!'; + * }; + * + * func(); + * // => 'hi, moe!' + */ + function lateBind(object, methodName) { + return createBound(methodName, object, slice.call(arguments, 2)); + } + + /** + * Creates a function that memoizes the result of `func`. If `resolver` is + * passed, it will be used to determine the cache key for storing the result + * based on the arguments passed to the memoized function. By default, the first + * argument passed to the memoized function is used as the cache key. The `func` + * is executed with the `this` binding of the memoized function. + * + * @static + * @memberOf _ + * @category Functions + * @param {Function} func The function to have its output memoized. + * @param {Function} [resolver] A function used to resolve the cache key. + * @returns {Function} Returns the new memoizing function. + * @example + * + * var fibonacci = _.memoize(function(n) { + * return n < 2 ? n : fibonacci(n - 1) + fibonacci(n - 2); + * }); + */ + function memoize(func, resolver) { + var cache = {}; + return function() { + var key = resolver ? resolver.apply(this, arguments) : arguments[0]; + return hasOwnProperty.call(cache, key) + ? cache[key] + : (cache[key] = func.apply(this, arguments)); + }; + } + + /** + * Creates a function that is restricted to execute `func` once. Repeat calls to + * the function will return the value of the first call. The `func` is executed + * with the `this` binding of the created function. + * + * @static + * @memberOf _ + * @category Functions + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var initialize = _.once(createApplication); + * initialize(); + * initialize(); + * // Application is only created once. + */ + function once(func) { + var result, + ran = false; + + return function() { + if (ran) { + return result; + } + ran = true; + result = func.apply(this, arguments); + + // clear the `func` variable so the function may be garbage collected + func = null; + return result; + }; + } + + /** + * Creates a function that, when called, invokes `func` with any additional + * `partial` arguments prepended to those passed to the new function. This + * method is similar to `bind`, except it does **not** alter the `this` binding. + * + * @static + * @memberOf _ + * @category Functions + * @param {Function} func The function to partially apply arguments to. + * @param {Mixed} [arg1, arg2, ...] Arguments to be partially applied. + * @returns {Function} Returns the new partially applied function. + * @example + * + * var greet = function(greeting, name) { return greeting + ': ' + name; }; + * var hi = _.partial(greet, 'hi'); + * hi('moe'); + * // => 'hi: moe' + */ + function partial(func) { + return createBound(func, slice.call(arguments, 1)); + } + + /** + * Creates a function that, when executed, will only call the `func` + * function at most once per every `wait` milliseconds. If the throttled + * function is invoked more than once during the `wait` timeout, `func` will + * also be called on the trailing edge of the timeout. Subsequent calls to the + * throttled function will return the result of the last `func` call. + * + * @static + * @memberOf _ + * @category Functions + * @param {Function} func The function to throttle. + * @param {Number} wait The number of milliseconds to throttle executions to. + * @returns {Function} Returns the new throttled function. + * @example + * + * var throttled = _.throttle(updatePosition, 100); + * jQuery(window).on('scroll', throttled); + */ + function throttle(func, wait) { + var args, + result, + thisArg, + timeoutId, + lastCalled = 0; + + function trailingCall() { + lastCalled = new Date; + timeoutId = null; + result = func.apply(thisArg, args); + } + return function() { + var now = new Date, + remaining = wait - (now - lastCalled); + + args = arguments; + thisArg = this; + + if (remaining <= 0) { + clearTimeout(timeoutId); + lastCalled = now; + result = func.apply(thisArg, args); + } + else if (!timeoutId) { + timeoutId = setTimeout(trailingCall, remaining); + } + return result; + }; + } + + /** + * Creates a function that passes `value` to the `wrapper` function as its + * first argument. Additional arguments passed to the function are appended + * to those passed to the `wrapper` function. The `wrapper` is executed with + * the `this` binding of the created function. + * + * @static + * @memberOf _ + * @category Functions + * @param {Mixed} value The value to wrap. + * @param {Function} wrapper The wrapper function. + * @returns {Function} Returns the new function. + * @example + * + * var hello = function(name) { return 'hello ' + name; }; + * hello = _.wrap(hello, function(func) { + * return 'before, ' + func('moe') + ', after'; + * }); + * hello(); + * // => 'before, hello moe, after' + */ + function wrap(value, wrapper) { + return function() { + var args = [value]; + push.apply(args, arguments); + return wrapper.apply(this, args); + }; + } + + /*--------------------------------------------------------------------------*/ + + /** + * Converts the characters `&`, `<`, `>`, `"`, and `'` in `string` to their + * corresponding HTML entities. + * + * @static + * @memberOf _ + * @category Utilities + * @param {String} string The string to escape. + * @returns {String} Returns the escaped string. + * @example + * + * _.escape('Moe, Larry & Curly'); + * // => "Moe, Larry & Curly" + */ + function escape(string) { + return string == null ? '' : (string + '').replace(reUnescapedHtml, escapeHtmlChar); + } + + /** + * This function returns the first argument passed to it. + * + * Note: It is used throughout Lo-Dash as a default callback. + * + * @static + * @memberOf _ + * @category Utilities + * @param {Mixed} value Any value. + * @returns {Mixed} Returns `value`. + * @example + * + * var moe = { 'name': 'moe' }; + * moe === _.identity(moe); + * // => true + */ + function identity(value) { + return value; + } + + /** + * Adds functions properties of `object` to the `lodash` function and chainable + * wrapper. + * + * @static + * @memberOf _ + * @category Utilities + * @param {Object} object The object of function properties to add to `lodash`. + * @example + * + * _.mixin({ + * 'capitalize': function(string) { + * return string.charAt(0).toUpperCase() + string.slice(1).toLowerCase(); + * } + * }); + * + * _.capitalize('larry'); + * // => 'Larry' + * + * _('curly').capitalize(); + * // => 'Curly' + */ + function mixin(object) { + forEach(functions(object), function(methodName) { + var func = lodash[methodName] = object[methodName]; + + lodash.prototype[methodName] = function() { + var args = [this.__wrapped__]; + push.apply(args, arguments); + + var result = func.apply(lodash, args); + if (this.__chain__) { + result = new lodash(result); + result.__chain__ = true; + } + return result; + }; + }); + } + + /** + * Reverts the '_' variable to its previous value and returns a reference to + * the `lodash` function. + * + * @static + * @memberOf _ + * @category Utilities + * @returns {Function} Returns the `lodash` function. + * @example + * + * var lodash = _.noConflict(); + */ + function noConflict() { + window._ = oldDash; + return this; + } + + /** + * Produces a random number between `min` and `max` (inclusive). If only one + * argument is passed, a number between `0` and the given number will be returned. + * + * @static + * @memberOf _ + * @category Utilities + * @param {Number} [min=0] The minimum possible value. + * @param {Number} [max=1] The maximum possible value. + * @returns {Number} Returns a random number. + * @example + * + * _.random(0, 5); + * // => a number between 1 and 5 + * + * _.random(5); + * // => also a number between 1 and 5 + */ + function random(min, max) { + if (min == null && max == null) { + max = 1; + } + min = +min || 0; + if (max == null) { + max = min; + min = 0; + } + return min + floor(nativeRandom() * ((+max || 0) - min + 1)); + } + + /** + * Resolves the value of `property` on `object`. If `property` is a function + * it will be invoked and its result returned, else the property value is + * returned. If `object` is falsey, then `null` is returned. + * + * @deprecated + * @static + * @memberOf _ + * @category Utilities + * @param {Object} object The object to inspect. + * @param {String} property The property to get the value of. + * @returns {Mixed} Returns the resolved value. + * @example + * + * var object = { + * 'cheese': 'crumpets', + * 'stuff': function() { + * return 'nonsense'; + * } + * }; + * + * _.result(object, 'cheese'); + * // => 'crumpets' + * + * _.result(object, 'stuff'); + * // => 'nonsense' + */ + function result(object, property) { + // based on Backbone's private `getValue` function + // https://github.com/documentcloud/backbone/blob/0.9.2/backbone.js#L1419-1424 + var value = object ? object[property] : null; + return isFunction(value) ? object[property]() : value; + } + + /** + * A micro-templating method that handles arbitrary delimiters, preserves + * whitespace, and correctly escapes quotes within interpolated code. + * + * Note: In the development build `_.template` utilizes sourceURLs for easier + * debugging. See http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl + * + * Note: Lo-Dash may be used in Chrome extensions by either creating a `lodash csp` + * build and avoiding `_.template` use, or loading Lo-Dash in a sandboxed page. + * See http://developer.chrome.com/trunk/extensions/sandboxingEval.html + * + * @static + * @memberOf _ + * @category Utilities + * @param {String} text The template text. + * @param {Obect} data The data object used to populate the text. + * @param {Object} options The options object. + * escape - The "escape" delimiter regexp. + * evaluate - The "evaluate" delimiter regexp. + * interpolate - The "interpolate" delimiter regexp. + * sourceURL - The sourceURL of the template's compiled source. + * variable - The data object variable name. + * + * @returns {Function|String} Returns a compiled function when no `data` object + * is given, else it returns the interpolated text. + * @example + * + * // using a compiled template + * var compiled = _.template('hello <%= name %>'); + * compiled({ 'name': 'moe' }); + * // => 'hello moe' + * + * var list = '<% _.forEach(people, function(name) { %>
  • <%= name %>
    • <% }); %>'; + * _.template(list, { 'people': ['moe', 'larry', 'curly'] }); + * // => '
  • moe
  • larry
  • curly
    • ' + * + * // using the "escape" delimiter to escape HTML in data property values + * _.template('<%- value %>', { 'value': ' - - -
    -
    - -
      - -
    • -
      -

      backbone-validation.js

      -
      -
      • - - - -
    • -
      - -
      - -
      -

      Backbone.Validation v0.9.1

      -

      Copyright (c) 2011-2015 Thomas Pedersen + + + + + backbone-validation.js + + + + + + +

      +
      + +
        + +
      • +
        +

        backbone-validation.js

        +
        +
        • + + + +
      • +
        + +
        + +
        +

        Backbone.Validation v0.9.0

        +

        Copyright (c) 2011-2013 Thomas Pedersen Distributed under MIT License

        Documentation and full license available at: http://thedersen.com/projects/backbone-validation

        - -
        - - 
        Backbone.Validation = (function(_){

-  'use strict';
        - -
        • - - -
      • -
        - -
        - -
        -

        Default options

        - -
        - - 
        -  var defaultOptions = {
-    forceUpdate: false,
-    selector: 'name',
-    labelFormatter: 'sentenceCase',
-    valid: Function.prototype,
-    invalid: Function.prototype
-  };
        - -
        • - - -
      • -
        - -
        - -
        -

        Helper functions

        - -
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
        Backbone.Validation = (function(_){
+  'use strict';
        + +
        • + + +
      • +
        + +
        + +
        +

        Default options

        + +
        + +
        • + + +
      • +
        + +
        + +
        + +
        + + 
          var defaultOptions = {
+    forceUpdate: false,
+    selector: 'name',
+    labelFormatter: 'sentenceCase',
+    valid: Function.prototype,
+    invalid: Function.prototype
+  };
        + +
        • + + +
      • +
        + +
        + +
        +

        Helper functions

        + +
        + +
        • + + +
      • +
        + +
        + +

        Formatting functions used for formatting error messages

        - -
        - - 
          var formatFunctions = {
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
          var formatFunctions = {
        + +
        • + + +
      • +
        + +
        + +

        Uses the configured label formatter to format the attribute name to make it more readable for the user

        - -
        - - 
            formatLabel: function(attrName, model) {
-      return defaultLabelFormatters[defaultOptions.labelFormatter](attrName, model);
-    },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            formatLabel: function(attrName, model) {
+      return defaultLabelFormatters[defaultOptions.labelFormatter](attrName, model);
+    },
        + +
        • + + +
      • +
        + +
        + +

        Replaces nummeric placeholders like {0} in a string with arguments passed to the function

        - -
        - - 
            format: function() {
-      var args = Array.prototype.slice.call(arguments),
-          text = args.shift();
-      return text.replace(/\{(\d+)\}/g, function(match, number) {
-        return typeof args[number] !== 'undefined' ? args[number] : match;
-      });
-    }
-  };
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            format: function() {
+      var args = Array.prototype.slice.call(arguments),
+          text = args.shift();
+      return text.replace(/\{(\d+)\}/g, function(match, number) {
+        return typeof args[number] !== 'undefined' ? args[number] : match;
+      });
+    }
+  };
        + +
        • + + +
      • +
        + +
        + +

        Flattens an object eg:

        -
        var o = {
+
        var o = {
   address: {
-    street: 'Street',
-    zip: 1234
+    street: 'Street',
+    zip: 1234
   }
-};
-
        becomes:
        
-
        var o = {
-  'address.street': 'Street',
-  'address.zip': 1234
-};
-
        
-
        - - 
          var flatten = function (obj, into, prefix) {
-    into = into || {};
-    prefix = prefix || '';
-
-    _.each(obj, function(val, key) {
-      if(obj.hasOwnProperty(key)) {
-        if (_.isPlainObject(val)) {
-          flatten(val, into, prefix + key + '.');
-        }
-        else {
-          into[prefix + key] = val;
-        }
-      }
-    });
-
-    return into;
-  };
        - -
        • - - -
      • -
        - -
        - -
        -

        Validation

        - -
        - - 
        -  var Validation = (function(){
        - -
        • - - -
      • -
        - -
        - -
        +};         +

        becomes:

        +
        var o = {
+  'address.street': 'Street',
+  'address.zip': 1234
+};
        + +
        + + 
          var flatten = function (obj, into, prefix) {
+    into = into || {};
+    prefix = prefix || '';
+
+    _.each(obj, function(val, key) {
+      if(obj.hasOwnProperty(key)) {
+        if (val && typeof val === 'object' && !(
+          val instanceof Array ||
+          val instanceof Date ||
+          val instanceof RegExp ||
+          val instanceof Backbone.Model ||
+          val instanceof Backbone.Collection)
+        ) {
+          flatten(val, into, prefix + key + '.');
+        }
+        else {
+          into[prefix + key] = val;
+        }
+      }
+    });
+
+    return into;
+  };
        + +
        • + + +
      • +
        + +
        + +
        +

        Validation

        + +
        + +
        • + + +
      • +
        + +
        + +
        + +
        + + 
          var Validation = (function(){
        + +
        • + + +
      • +
        + +
        + +

        Returns an object with undefined properties for all attributes on the model that has defined one or more validation rules.

        - -
        - - 
            var getValidatedAttrs = function(model) {
-      return _.reduce(_.keys(_.result(model, 'validation') || {}), function(memo, key) {
-        memo[key] = void 0;
-        return memo;
-      }, {});
-    };
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            var getValidatedAttrs = function(model) {
+      return _.reduce(_.keys(_.result(model, 'validation') || {}), function(memo, key) {
+        memo[key] = void 0;
+        return memo;
+      }, {});
+    };
        + +
        • + + +
      • +
        + +
        + +

        Looks on the model for validations for a specified attribute. Returns an array of any validators defined, or an empty array if none is defined.

        - -
        - - 
            var getValidators = function(model, attr) {
-      var attrValidationSet = model.validation ? _.result(model, 'validation')[attr] || {} : {};
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            var getValidators = function(model, attr) {
+      var attrValidationSet = model.validation ? _.result(model, 'validation')[attr] || {} : {};
        + +
        • + + +
      • +
        + +
        + +

        If the validator is a function or a string, wrap it in a function validator

        - -
        - - 
              if (_.isFunction(attrValidationSet) || _.isString(attrValidationSet)) {
-        attrValidationSet = {
-          fn: attrValidationSet
-        };
-      }
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              if (_.isFunction(attrValidationSet) || _.isString(attrValidationSet)) {
+        attrValidationSet = {
+          fn: attrValidationSet
+        };
+      }
        + +
        • + + +
      • +
        + +
        + +

        Stick the validator object into an array

        - -
        - - 
              if(!_.isArray(attrValidationSet)) {
-        attrValidationSet = [attrValidationSet];
-      }
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              if(!_.isArray(attrValidationSet)) {
+        attrValidationSet = [attrValidationSet];
+      }
        + +
        • + + +
      • +
        + +
        + +

        Reduces the array of validators into a new array with objects with a validation method to call, the value to validate against and the specified error message, if any

        - -
        - - 
              return _.reduce(attrValidationSet, function(memo, attrValidation) {
-        _.each(_.without(_.keys(attrValidation), 'msg'), function(validator) {
-          memo.push({
-            fn: defaultValidators[validator],
-            val: attrValidation[validator],
-            msg: attrValidation.msg
-          });
-        });
-        return memo;
-      }, []);
-    };
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              return _.reduce(attrValidationSet, function(memo, attrValidation) {
+        _.each(_.without(_.keys(attrValidation), 'msg'), function(validator) {
+          memo.push({
+            fn: defaultValidators[validator],
+            val: attrValidation[validator],
+            msg: attrValidation.msg
+          });
+        });
+        return memo;
+      }, []);
+    };
        + +
        • + + +
      • +
        + +
        + +

        Validates an attribute against all validators defined for that attribute. If one or more errors are found, the first error message is returned. If the attribute is valid, an empty string is returned.

        - -
        - - 
            var validateAttr = function(model, attr, value, computed) {
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            var validateAttr = function(model, attr, value, computed) {
        + +
        • + + +
      • +
        + +
        + +

        Reduces the array of validators to an error message by applying all the validators and returning the first error message, if any.

        - -
        - - 
              return _.reduce(getValidators(model, attr), function(memo, validator){
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              return _.reduce(getValidators(model, attr), function(memo, validator){
        + +
        • + + +
      • +
        + +
        + +

        Pass the format functions plus the default validators as the context to the validator

        - -
        - - 
                var ctx = _.extend({}, formatFunctions, defaultValidators),
-            result = validator.fn.call(ctx, value, attr, validator.val, model, computed);
-
-        if(result === false || memo === false) {
-          return false;
-        }
-        if (result && !memo) {
-          return _.result(validator, 'msg') || result;
-        }
-        return memo;
-      }, '');
-    };
        - -
        • - - -
      • -
        - -
        - -
        -

        Loops through the model’s attributes and validates them all. + +

        + + 
                var ctx = _.extend({}, formatFunctions, defaultValidators),
+            result = validator.fn.call(ctx, value, attr, validator.val, model, computed);
+
+        if(result === false || memo === false) {
+          return false;
+        }
+        if (result && !memo) {
+          return _.result(validator, 'msg') || result;
+        }
+        return memo;
+      }, '');
+    };
        + +
        • + + +
      • +
        + +
        + +
        +

        Loops through the model's attributes and validates them all. Returns and object containing names of invalid attributes as well as error messages.

        - -
        - - 
            var validateModel = function(model, attrs) {
-      var error,
-          invalidAttrs = {},
-          isValid = true,
-          computed = _.clone(attrs),
-          flattened = flatten(attrs);
-
-      _.each(flattened, function(val, attr) {
-        error = validateAttr(model, attr, val, computed);
-        if (error) {
-          invalidAttrs[attr] = error;
-          isValid = false;
-        }
-      });
-
-      return {
-        invalidAttrs: invalidAttrs,
-        isValid: isValid
-      };
-    };
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            var validateModel = function(model, attrs) {
+      var error,
+          invalidAttrs = {},
+          isValid = true,
+          computed = _.clone(attrs),
+          flattened = flatten(attrs);
+
+      _.each(flattened, function(val, attr) {
+        error = validateAttr(model, attr, val, computed);
+        if (error) {
+          invalidAttrs[attr] = error;
+          isValid = false;
+        }
+      });
+
+      return {
+        invalidAttrs: invalidAttrs,
+        isValid: isValid
+      };
+    };
        + +
        • + + +
      • +
        + +
        + +

        Contains the methods that are mixed in on the model when binding

        - -
        - - 
            var mixin = function(view, options) {
-      return {
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            var mixin = function(view, options) {
+      return {
        + +
        • + + +
      • +
        + +
        + +

        Check whether or not a value, or a hash of values passes validation without updating the model

        - -
        - - 
                preValidate: function(attr, value) {
-          var self = this,
-              result = {},
-              error;
-
-          if(_.isObject(attr)){
-            _.each(attr, function(value, key) {
-              error = self.preValidate(key, value);
-              if(error){
-                result[key] = error;
-              }
-            });
-
-            return _.isEmpty(result) ? undefined : result;
-          }
-          else {
-            return validateAttr(this, attr, value, _.extend({}, this.attributes));
-          }
-        },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
                preValidate: function(attr, value) {
+          var self = this,
+              result = {},
+              error;
+
+          if(_.isObject(attr)){
+            _.each(attr, function(value, key) {
+              error = self.preValidate(key, value);
+              if(error){
+                result[key] = error;
+              }
+            });
+
+            return _.isEmpty(result) ? undefined : result;
+          }
+          else {
+            return validateAttr(this, attr, value, _.extend({}, this.attributes));
+          }
+        },
        + +
        • + + +
      • +
        + +
        + +

        Check to see if an attribute, an array of attributes or the entire model is valid. Passing true will force a validation of the model.

        - -
        - - 
                isValid: function(option) {
-          var flattened = flatten(this.attributes);
-
-          if(_.isString(option)){
-            return !validateAttr(this, option, flattened[option], _.extend({}, this.attributes));
-          }
-          if(_.isArray(option)){
-            return _.reduce(option, function(memo, attr) {
-              return memo && !validateAttr(this, attr, flattened[attr], _.extend({}, this.attributes));
-            }, true, this);
-          }
-          if(option === true) {
-            this.validate();
-          }
-          return this.validation ? this._isValid : true;
-        },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
                isValid: function(option) {
+          var flattened = flatten(this.attributes);
+
+          if(_.isString(option)){
+            return !validateAttr(this, option, flattened[option], _.extend({}, this.attributes));
+          }
+          if(_.isArray(option)){
+            return _.reduce(option, function(memo, attr) {
+              return memo && !validateAttr(this, attr, flattened[attr], _.extend({}, this.attributes));
+            }, true, this);
+          }
+          if(option === true) {
+            this.validate();
+          }
+          return this.validation ? this._isValid : true;
+        },
        + +
        • + + +
      • +
        + +
        + +

        This is called by Backbone when it needs to perform validation. You can call it manually without any parameters to validate the entire model.

        - -
        - - 
                validate: function(attrs, setOptions){
-          var model = this,
-              validateAll = !attrs,
-              opt = _.extend({}, options, setOptions),
-              validatedAttrs = getValidatedAttrs(model),
-              allAttrs = _.extend({}, validatedAttrs, model.attributes, attrs),
-              changedAttrs = flatten(attrs || allAttrs),
-
-              result = validateModel(model, allAttrs);
-
-          model._isValid = result.isValid;
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
                validate: function(attrs, setOptions){
+          var model = this,
+              validateAll = !attrs,
+              opt = _.extend({}, options, setOptions),
+              validatedAttrs = getValidatedAttrs(model),
+              allAttrs = _.extend({}, validatedAttrs, model.attributes, attrs),
+              changedAttrs = flatten(attrs || allAttrs),
+
+              result = validateModel(model, allAttrs);
+
+          model._isValid = result.isValid;
        + +
        • + + +
      • +
        + +
        + +

        After validation is performed, loop through all validated attributes and call the valid callbacks so the view is updated.

        - -
        - - 
                  _.each(validatedAttrs, function(val, attr){
-            var invalid = result.invalidAttrs.hasOwnProperty(attr);
-            if(!invalid){
-              opt.valid(view, attr, opt.selector);
-            }
-          });
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
                  _.each(validatedAttrs, function(val, attr){
+            var invalid = result.invalidAttrs.hasOwnProperty(attr);
+            if(!invalid){
+              opt.valid(view, attr, opt.selector);
+            }
+          });
        + +
        • + + +
      • +
        + +
        + +

        After validation is performed, loop through all validated and changed attributes and call the invalid callback so the view is updated.

        - -
        - - 
                  _.each(validatedAttrs, function(val, attr){
-            var invalid = result.invalidAttrs.hasOwnProperty(attr),
-                changed = changedAttrs.hasOwnProperty(attr);
-
-            if(invalid && (changed || validateAll)){
-              opt.invalid(view, attr, result.invalidAttrs[attr], opt.selector);
-            }
-          });
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
                  _.each(validatedAttrs, function(val, attr){
+            var invalid = result.invalidAttrs.hasOwnProperty(attr),
+                changed = changedAttrs.hasOwnProperty(attr);
+
+            if(invalid && (changed || validateAll)){
+              opt.invalid(view, attr, result.invalidAttrs[attr], opt.selector);
+            }
+          });
        + +
        • + + +
      • +
        + +
        + +

        Trigger validated events. Need to defer this so the model is actually updated before the event is triggered.

        - -
        - - 
                  _.defer(function() {
-            model.trigger('validated', model._isValid, model, result.invalidAttrs);
-            model.trigger('validated:' + (model._isValid ? 'valid' : 'invalid'), model, result.invalidAttrs);
-          });
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
                  _.defer(function() {
+            model.trigger('validated', model._isValid, model, result.invalidAttrs);
+            model.trigger('validated:' + (model._isValid ? 'valid' : 'invalid'), model, result.invalidAttrs);
+          });
        + +
        • + + +
      • +
        + +
        + +

        Return any error messages to Backbone, unless the forceUpdate flag is set. Then we do not return anything and fools Backbone to believe the validation was a success. That way Backbone will update the model regardless.

        - -
        - - 
                  if (!opt.forceUpdate && _.intersection(_.keys(result.invalidAttrs), _.keys(changedAttrs)).length > 0) {
-            return result.invalidAttrs;
-          }
-        }
-      };
-    };
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
                  if (!opt.forceUpdate && _.intersection(_.keys(result.invalidAttrs), _.keys(changedAttrs)).length > 0) {
+            return result.invalidAttrs;
+          }
+        }
+      };
+    };
        + +
        • + + +
      • +
        + +
        + +

        Helper to mix in validation on a model

        - -
        - - 
            var bindModel = function(view, model, options) {
-      _.extend(model, mixin(view, options));
-    };
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            var bindModel = function(view, model, options) {
+      _.extend(model, mixin(view, options));
+    };
        + +
        • + + +
      • +
        + +
        + +

        Removes the methods added to a model

        - -
        - - 
            var unbindModel = function(model) {
-      delete model.validate;
-      delete model.preValidate;
-      delete model.isValid;
-    };
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            var unbindModel = function(model) {
+      delete model.validate;
+      delete model.preValidate;
+      delete model.isValid;
+    };
        + +
        • + + +
      • +
        + +
        + +

        Mix in validation on a model whenever a model is added to a collection

        - -
        - - 
            var collectionAdd = function(model) {
-      bindModel(this.view, model, this.options);
-    };
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            var collectionAdd = function(model) {
+      bindModel(this.view, model, this.options);
+    };
        + +
        • + + +
      • +
        + +
        + +

        Remove validation from a model whenever a model is removed from a collection

        - -
        - - 
            var collectionRemove = function(model) {
-      unbindModel(model);
-    };
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            var collectionRemove = function(model) {
+      unbindModel(model);
+    };
        + +
        • + + +
      • +
        + +
        + +

        Returns the public methods on Backbone.Validation

        - -
        - - 
            return {
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            return {
        + +
        • + + +
      • +
        + +
        + +

        Current version of the library

        - -
        - - 
              version: '0.9.1',
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              version: '0.9.0',
        + +
        • + + +
      • +
        + +
        + +

        Called to configure the default options

        - -
        - - 
              configure: function(options) {
-        _.extend(defaultOptions, options);
-      },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              configure: function(options) {
+        _.extend(defaultOptions, options);
+      },
        + +
        • + + +
      • +
        + +
        + +

        Hooks up validation on a view with a model or collection

        - -
        - - 
              bind: function(view, options) {
-        options = _.extend({}, defaultOptions, defaultCallbacks, options);
-
-        var model = options.model || view.model,
-            collection = options.collection || view.collection;
-
-        if(typeof model === 'undefined' && typeof collection === 'undefined'){
-          throw 'Before you execute the binding your view must have a model or a collection.\n' +
-                'See http://thedersen.com/projects/backbone-validation/#using-form-model-validation for more information.';
-        }
-
-        if(model) {
-          bindModel(view, model, options);
-        }
-        else if(collection) {
-          collection.each(function(model){
-            bindModel(view, model, options);
-          });
-          collection.bind('add', collectionAdd, {view: view, options: options});
-          collection.bind('remove', collectionRemove);
-        }
-      },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              bind: function(view, options) {
+        options = _.extend({}, defaultOptions, defaultCallbacks, options);
+
+        var model = options.model || view.model,
+            collection = options.collection || view.collection;
+
+        if(typeof model === 'undefined' && typeof collection === 'undefined'){
+          throw 'Before you execute the binding your view must have a model or a collection.\n' +
+                'See http://thedersen.com/projects/backbone-validation/#using-form-model-validation for more information.';
+        }
+
+        if(model) {
+          bindModel(view, model, options);
+        }
+        else if(collection) {
+          collection.each(function(model){
+            bindModel(view, model, options);
+          });
+          collection.bind('add', collectionAdd, {view: view, options: options});
+          collection.bind('remove', collectionRemove);
+        }
+      },
        + +
        • + + +
      • +
        + +
        + +

        Removes validation from a view with a model or collection

        - -
        - - 
              unbind: function(view, options) {
-        options = _.extend({}, options);
-        var model = options.model || view.model,
-            collection = options.collection || view.collection;
-
-        if(model) {
-          unbindModel(model);
-        }
-        else if(collection) {
-          collection.each(function(model){
-            unbindModel(model);
-          });
-          collection.unbind('add', collectionAdd);
-          collection.unbind('remove', collectionRemove);
-        }
-      },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              unbind: function(view, options) {
+        options = _.extend({}, options);
+        var model = options.model || view.model,
+            collection = options.collection || view.collection;
+
+        if(model) {
+          unbindModel(model);
+        }
+        if(collection) {
+          collection.each(function(model){
+            unbindModel(model);
+          });
+          collection.unbind('add', collectionAdd);
+          collection.unbind('remove', collectionRemove);
+        }
+      },
        + +
        • + + +
      • +
        + +
        + +

        Used to extend the Backbone.Model.prototype with validation

        - -
        - - 
              mixin: mixin(null, defaultOptions)
-    };
-  }());
        - -
        • - - -
      • -
        - -
        - -
        -

        Callbacks

        - -
        - - 
        -  var defaultCallbacks = Validation.callbacks = {
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              mixin: mixin(null, defaultOptions)
+    };
+  }());
        + +
        • + + +
      • +
        + +
        + +
        +

        Callbacks

        + +
        + +
        • + + +
      • +
        + +
        + +
        + +
        + + 
          var defaultCallbacks = Validation.callbacks = {
        + +
        • + + +
      • +
        + +
        + +

        Gets called when a previously invalid field in the view becomes valid. Removes any error message. Should be overridden with custom functionality.

        - -
        - - 
            valid: function(view, attr, selector) {
-      view.$('[' + selector + '~="' + attr + '"]')
-          .removeClass('invalid')
-          .removeAttr('data-error');
-    },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            valid: function(view, attr, selector) {
+      view.$('[' + selector + '~="' + attr + '"]')
+          .removeClass('invalid')
+          .removeAttr('data-error');
+    },
        + +
        • + + +
      • +
        + +
        + +

        Gets called when a field in the view becomes invalid. Adds a error message. Should be overridden with custom functionality.

        - -
        - - 
            invalid: function(view, attr, error, selector) {
-      view.$('[' + selector + '~="' + attr + '"]')
-          .addClass('invalid')
-          .attr('data-error', error);
-    }
-  };
        - -
        • - - -
      • -
        - -
        - -
        -

        Patterns

        - -
        - - 
        -  var defaultPatterns = Validation.patterns = {
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            invalid: function(view, attr, error, selector) {
+      view.$('[' + selector + '~="' + attr + '"]')
+          .addClass('invalid')
+          .attr('data-error', error);
+    }
+  };
        + +
        • + + +
      • +
        + +
        + +
        +

        Patterns

        + +
        + +
        • + + +
      • +
        + +
        + +
        + +
        + + 
          var defaultPatterns = Validation.patterns = {
        + +
        • + + +
      • +
        + +
        + +

        Matches any digit(s) (i.e. 0-9)

        - -
        - - 
            digits: /^\d+$/,
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            digits: /^\d+$/,
        + +
        • + + +
      • +
        + +
        + +

        Matches any number (e.g. 100.000)

        - -
        - - 
            number: /^-?(?:\d+|\d{1,3}(?:,\d{3})+)(?:\.\d+)?$/,
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            number: /^-?(?:\d+|\d{1,3}(?:,\d{3})+)(?:\.\d+)?$/,
        + +
        • + + +
      • +
        + +
        + +

        Matches a valid email address (e.g. mail@example.com)

        - -
        - - 
            email: /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))$/i,
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            email: /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))$/i,
        + +
        • + + +
      • +
        + +
        + +

        Mathes any valid url (e.g. http://www.xample.com)

        - -
        - - 
            url: /^(https?|ftp):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i
-  };
        - -
        • - - -
      • -
        - -
        - -
        -

        Error messages

        - -
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            url: /^(https?|ftp):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i
+  };
        + +
        • + + +
      • +
        + +
        + +
        +

        Error messages

        + +
        + +
        • + + +
      • +
        + +
        + +

        Error message for the build in validators. {x} gets swapped out with arguments form the validator.

        - -
        - - 
          var defaultMessages = Validation.messages = {
-    required: '{0} is required',
-    acceptance: '{0} must be accepted',
-    min: '{0} must be greater than or equal to {1}',
-    max: '{0} must be less than or equal to {1}',
-    range: '{0} must be between {1} and {2}',
-    length: '{0} must be {1} characters',
-    minLength: '{0} must be at least {1} characters',
-    maxLength: '{0} must be at most {1} characters',
-    rangeLength: '{0} must be between {1} and {2} characters',
-    oneOf: '{0} must be one of: {1}',
-    equalTo: '{0} must be the same as {1}',
-    digits: '{0} must only contain digits',
-    number: '{0} must be a number',
-    email: '{0} must be a valid email',
-    url: '{0} must be a valid url',
-    inlinePattern: '{0} is invalid'
-  };
        - -
        • - - -
      • -
        - -
        - -
        -

        Label formatters

        - -
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
          var defaultMessages = Validation.messages = {
+    required: '{0} is required',
+    acceptance: '{0} must be accepted',
+    min: '{0} must be greater than or equal to {1}',
+    max: '{0} must be less than or equal to {1}',
+    range: '{0} must be between {1} and {2}',
+    length: '{0} must be {1} characters',
+    minLength: '{0} must be at least {1} characters',
+    maxLength: '{0} must be at most {1} characters',
+    rangeLength: '{0} must be between {1} and {2} characters',
+    oneOf: '{0} must be one of: {1}',
+    equalTo: '{0} must be the same as {1}',
+    digits: '{0} must only contain digits',
+    number: '{0} must be a number',
+    email: '{0} must be a valid email',
+    url: '{0} must be a valid url',
+    inlinePattern: '{0} is invalid'
+  };
        + +
        • + + +
      • +
        + +
        + +
        +

        Label formatters

        + +
        + +
        • + + +
      • +
        + +
        + +

        Label formatters are used to convert the attribute name to a more human friendly label when using the built in error messages. Configure which one to use with a call to

        Backbone.Validation.configure({
-  labelFormatter: 'label'
-});
-
        -
        - - 
          var defaultLabelFormatters = Validation.labelFormatters = {
        - -
        • - - -
      • -
        - -
        - -
        + labelFormatter: 'label' +}); + +
        + + 
          var defaultLabelFormatters = Validation.labelFormatters = {
        + +
        • + + +
      • +
        + +
        + +

        Returns the attribute name with applying any formatting

        - -
        - - 
            none: function(attrName) {
-      return attrName;
-    },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            none: function(attrName) {
+      return attrName;
+    },
        + +
        • + + +
      • +
        + +
        + +

        Converts attributeName or attribute_name to Attribute name

        - -
        - - 
            sentenceCase: function(attrName) {
-      return attrName.replace(/(?:^\w|[A-Z]|\b\w)/g, function(match, index) {
-        return index === 0 ? match.toUpperCase() : ' ' + match.toLowerCase();
-      }).replace(/_/g, ' ');
-    },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            sentenceCase: function(attrName) {
+      return attrName.replace(/(?:^\w|[A-Z]|\b\w)/g, function(match, index) {
+        return index === 0 ? match.toUpperCase() : ' ' + match.toLowerCase();
+      }).replace(/_/g, ' ');
+    },
        + +
        • + + +
      • +
        + +
        + +

        Looks for a label configured on the model and returns it

        -
         var Model = Backbone.Model.extend({
+
         var Model = Backbone.Model.extend({
    validation: {
      someAttribute: {
-       required: true
+       required: true
      }
    },
 
    labels: {
-     someAttribute: 'Custom label'
+     someAttribute: 'Custom label'
    }
- });
-
        
-
        - - 
            label: function(attrName, model) {
-      return (model.labels && model.labels[attrName]) || defaultLabelFormatters.sentenceCase(attrName, model);
-    }
-  };
        - -
        • - - -
      • -
        - -
        - -
        -

        Built in validators

        - -
        - - 
        -  var defaultValidators = Validation.validators = (function(){
        - -
        • - - -
      • -
        - -
        - -
        + });         + +
        + + 
            label: function(attrName, model) {
+      return (model.labels && model.labels[attrName]) || defaultLabelFormatters.sentenceCase(attrName, model);
+    }
+  };
        + +
        • + + +
      • +
        + +
        + +
        +

        Built in validators

        + +
        + +
        • + + +
      • +
        + +
        + +
        + +
        + + 
          var defaultValidators = Validation.validators = (function(){
        + +
        • + + +
      • +
        + +
        + +

        Use native trim when defined

        - -
        - - 
            var trim = String.prototype.trim ?
-      function(text) {
-        return text === null ? '' : String.prototype.trim.call(text);
-      } :
-      function(text) {
-        var trimLeft = /^\s+/,
-            trimRight = /\s+$/;
-
-        return text === null ? '' : text.toString().replace(trimLeft, '').replace(trimRight, '');
-      };
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            var trim = String.prototype.trim ?
+      function(text) {
+        return text === null ? '' : String.prototype.trim.call(text);
+      } :
+      function(text) {
+        var trimLeft = /^\s+/,
+            trimRight = /\s+$/;
+
+        return text === null ? '' : text.toString().replace(trimLeft, '').replace(trimRight, '');
+      };
        + +
        • + + +
      • +
        + +
        + +

        Determines whether or not a value is a number

        - -
        - - 
            var isNumber = function(value){
-      return _.isNumber(value) || (_.isString(value) && value.match(defaultPatterns.number));
-    };
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            var isNumber = function(value){
+      return _.isNumber(value) || (_.isString(value) && value.match(defaultPatterns.number));
+    };
        + +
        • + + +
      • +
        + +
        + +

        Determines whether or not a value is empty

        - -
        - - 
            var hasValue = function(value) {
-      return !(_.isNull(value) || _.isUndefined(value) || (_.isString(value) && trim(value) === '') || (_.isArray(value) && _.isEmpty(value)));
-    };
-
-    return {
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
            var hasValue = function(value) {
+      return !(_.isNull(value) || _.isUndefined(value) || (_.isString(value) && trim(value) === '') || (_.isArray(value) && _.isEmpty(value)));
+    };
+
+    return {
        + +
        • + + +
      • +
        + +
        + +

        Function validator Lets you implement a custom function used for validation

        - -
        - - 
              fn: function(value, attr, fn, model, computed) {
-        if(_.isString(fn)){
-          fn = model[fn];
-        }
-        return fn.call(model, value, attr, computed);
-      },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              fn: function(value, attr, fn, model, computed) {
+        if(_.isString(fn)){
+          fn = model[fn];
+        }
+        return fn.call(model, value, attr, computed);
+      },
        + +
        • + + +
      • +
        + +
        + +

        Required validator Validates if the attribute is required or not This can be specified as either a boolean value or a function that returns a boolean value

        - -
        - - 
              required: function(value, attr, required, model, computed) {
-        var isRequired = _.isFunction(required) ? required.call(model, value, attr, computed) : required;
-        if(!isRequired && !hasValue(value)) {
-          return false; // overrides all other validators
-        }
-        if (isRequired && !hasValue(value)) {
-          return this.format(defaultMessages.required, this.formatLabel(attr, model));
-        }
-      },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              required: function(value, attr, required, model, computed) {
+        var isRequired = _.isFunction(required) ? required.call(model, value, attr, computed) : required;
+        if(!isRequired && !hasValue(value)) {
+          return false; // overrides all other validators
+        }
+        if (isRequired && !hasValue(value)) {
+          return this.format(defaultMessages.required, this.formatLabel(attr, model));
+        }
+      },
        + +
        • + + +
      • +
        + +
        + +

        Acceptance validator Validates that something has to be accepted, e.g. terms of use -true or ‘true’ are valid

        - -
        - - 
              acceptance: function(value, attr, accept, model) {
-        if(value !== 'true' && (!_.isBoolean(value) || value === false)) {
-          return this.format(defaultMessages.acceptance, this.formatLabel(attr, model));
-        }
-      },
        - -
        • - - -
      • -
        - -
        - -
        +true or 'true' are valid

        + +
        + + 
              acceptance: function(value, attr, accept, model) {
+        if(value !== 'true' && (!_.isBoolean(value) || value === false)) {
+          return this.format(defaultMessages.acceptance, this.formatLabel(attr, model));
+        }
+      },
        + +
        • + + +
      • +
        + +
        + +

        Min validator Validates that the value has to be a number and equal to or greater than the min value specified

        - -
        - - 
              min: function(value, attr, minValue, model) {
-        if (!isNumber(value) || value < minValue) {
-          return this.format(defaultMessages.min, this.formatLabel(attr, model), minValue);
-        }
-      },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              min: function(value, attr, minValue, model) {
+        if (!isNumber(value) || value < minValue) {
+          return this.format(defaultMessages.min, this.formatLabel(attr, model), minValue);
+        }
+      },
        + +
        • + + +
      • +
        + +
        + +

        Max validator Validates that the value has to be a number and equal to or less than the max value specified

        - -
        - - 
              max: function(value, attr, maxValue, model) {
-        if (!isNumber(value) || value > maxValue) {
-          return this.format(defaultMessages.max, this.formatLabel(attr, model), maxValue);
-        }
-      },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              max: function(value, attr, maxValue, model) {
+        if (!isNumber(value) || value > maxValue) {
+          return this.format(defaultMessages.max, this.formatLabel(attr, model), maxValue);
+        }
+      },
        + +
        • + + +
      • +
        + +
        + +

        Range validator Validates that the value has to be a number and equal to or between the two numbers specified

        - -
        - - 
              range: function(value, attr, range, model) {
-        if(!isNumber(value) || value < range[0] || value > range[1]) {
-          return this.format(defaultMessages.range, this.formatLabel(attr, model), range[0], range[1]);
-        }
-      },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              range: function(value, attr, range, model) {
+        if(!isNumber(value) || value < range[0] || value > range[1]) {
+          return this.format(defaultMessages.range, this.formatLabel(attr, model), range[0], range[1]);
+        }
+      },
        + +
        • + + +
      • +
        + +
        + +

        Length validator Validates that the value has to be a string with length equal to the length value specified

        - -
        - - 
              length: function(value, attr, length, model) {
-        if (!_.isString(value) || value.length !== length) {
-          return this.format(defaultMessages.length, this.formatLabel(attr, model), length);
-        }
-      },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              length: function(value, attr, length, model) {
+        if (!_.isString(value) || value.length !== length) {
+          return this.format(defaultMessages.length, this.formatLabel(attr, model), length);
+        }
+      },
        + +
        • + + +
      • +
        + +
        + +

        Min length validator Validates that the value has to be a string with length equal to or greater than the min length value specified

        - -
        - - 
              minLength: function(value, attr, minLength, model) {
-        if (!_.isString(value) || value.length < minLength) {
-          return this.format(defaultMessages.minLength, this.formatLabel(attr, model), minLength);
-        }
-      },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              minLength: function(value, attr, minLength, model) {
+        if (!_.isString(value) || value.length < minLength) {
+          return this.format(defaultMessages.minLength, this.formatLabel(attr, model), minLength);
+        }
+      },
        + +
        • + + +
      • +
        + +
        + +

        Max length validator Validates that the value has to be a string with length equal to or less than the max length value specified

        - -
        - - 
              maxLength: function(value, attr, maxLength, model) {
-        if (!_.isString(value) || value.length > maxLength) {
-          return this.format(defaultMessages.maxLength, this.formatLabel(attr, model), maxLength);
-        }
-      },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              maxLength: function(value, attr, maxLength, model) {
+        if (!_.isString(value) || value.length > maxLength) {
+          return this.format(defaultMessages.maxLength, this.formatLabel(attr, model), maxLength);
+        }
+      },
        + +
        • + + +
      • +
        + +
        + +

        Range length validator Validates that the value has to be a string and equal to or between the two numbers specified

        - -
        - - 
              rangeLength: function(value, attr, range, model) {
-        if (!_.isString(value) || value.length < range[0] || value.length > range[1]) {
-          return this.format(defaultMessages.rangeLength, this.formatLabel(attr, model), range[0], range[1]);
-        }
-      },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              rangeLength: function(value, attr, range, model) {
+        if (!_.isString(value) || value.length < range[0] || value.length > range[1]) {
+          return this.format(defaultMessages.rangeLength, this.formatLabel(attr, model), range[0], range[1]);
+        }
+      },
        + +
        • + + +
      • +
        + +
        + +

        One of validator Validates that the value has to be equal to one of the elements in the specified array. Case sensitive matching

        - -
        - - 
              oneOf: function(value, attr, values, model) {
-        if(!_.include(values, value)){
-          return this.format(defaultMessages.oneOf, this.formatLabel(attr, model), values.join(', '));
-        }
-      },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              oneOf: function(value, attr, values, model) {
+        if(!_.include(values, value)){
+          return this.format(defaultMessages.oneOf, this.formatLabel(attr, model), values.join(', '));
+        }
+      },
        + +
        • + + +
      • +
        + +
        + +

        Equal to validator Validates that the value has to be equal to the value of the attribute with the name specified

        - -
        - - 
              equalTo: function(value, attr, equalTo, model, computed) {
-        if(value !== computed[equalTo]) {
-          return this.format(defaultMessages.equalTo, this.formatLabel(attr, model), this.formatLabel(equalTo, model));
-        }
-      },
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              equalTo: function(value, attr, equalTo, model, computed) {
+        if(value !== computed[equalTo]) {
+          return this.format(defaultMessages.equalTo, this.formatLabel(attr, model), this.formatLabel(equalTo, model));
+        }
+      },
        + +
        • + + +
      • +
        + +
        + +

        Pattern validator Validates that the value has to match the pattern specified. Can be a regular expression or the name of one of the built in patterns

        - -
        - - 
              pattern: function(value, attr, pattern, model) {
-        if (!hasValue(value) || !value.toString().match(defaultPatterns[pattern] || pattern)) {
-          return this.format(defaultMessages[pattern] || defaultMessages.inlinePattern, this.formatLabel(attr, model), pattern);
-        }
-      }
-    };
-  }());
        - -
        • - - -
      • -
        - -
        - -
        + +
        + + 
              pattern: function(value, attr, pattern, model) {
+        if (!hasValue(value) || !value.toString().match(defaultPatterns[pattern] || pattern)) {
+          return this.format(defaultMessages[pattern] || defaultMessages.inlinePattern, this.formatLabel(attr, model), pattern);
+        }
+      }
+    };
+  }());
        + +
        • + + +
      • +
        + +
        + +

        Set the correct context for all validators when used from within a method validator

        - -
        - - 
          _.each(defaultValidators, function(validator, key){
-    defaultValidators[key] = _.bind(defaultValidators[key], _.extend({}, formatFunctions, defaultValidators));
-  });
-
-  return Validation;
-}(_));
        - -
        • - -
      -
      - + +
      + + 
        _.each(defaultValidators, function(validator, key){
+    defaultValidators[key] = _.bind(defaultValidators[key], _.extend({}, formatFunctions, defaultValidators));
+  });
+
+  return Validation;
+}(_));
      + +
      • + +
    +
    + \ No newline at end of file diff --git a/lib/lodash-0.9.2.js b/lib/lodash-0.9.2.js deleted file mode 100644 index 9eae931c..00000000 --- a/lib/lodash-0.9.2.js +++ /dev/null @@ -1,4258 +0,0 @@ -/*! - * Lo-Dash v0.9.2 - * (c) 2012 John-David Dalton - * Based on Underscore.js 1.4.2 - * (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc. - * Available under MIT license - */ -;(function(window, undefined) { - - /** Detect free variable `exports` */ - var freeExports = typeof exports == 'object' && exports; - - /** Detect free variable `global` and use it as `window` */ - var freeGlobal = typeof global == 'object' && global; - if (freeGlobal.global === freeGlobal) { - window = freeGlobal; - } - - /** Used for array and object method references */ - var arrayRef = [], - // avoid a Closure Compiler bug by creatively creating an object - objectRef = new function(){}; - - /** Used to generate unique IDs */ - var idCounter = 0; - - /** Used internally to indicate various things */ - var indicatorObject = objectRef; - - /** Used by `cachedContains` as the default size when optimizations are enabled for large arrays */ - var largeArraySize = 30; - - /** Used to restore the original `_` reference in `noConflict` */ - var oldDash = window._; - - /** Used to detect template delimiter values that require a with-statement */ - var reComplexDelimiter = /[-?+=!~*%&^<>|{(\/]|\[\D|\b(?:delete|in|instanceof|new|typeof|void)\b/; - - /** Used to match HTML entities */ - var reEscapedHtml = /&(?:amp|lt|gt|quot|#x27);/g; - - /** Used to match empty string literals in compiled template source */ - var reEmptyStringLeading = /\b__p \+= '';/g, - reEmptyStringMiddle = /\b(__p \+=) '' \+/g, - reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g; - - /** Used to match regexp flags from their coerced string values */ - var reFlags = /\w*$/; - - /** Used to insert the data object variable into compiled template source */ - var reInsertVariable = /(?:__e|__t = )\(\s*(?![\d\s"']|this\.)/g; - - /** Used to detect if a method is native */ - var reNative = RegExp('^' + - (objectRef.valueOf + '') - .replace(/[.*+?^=!:${}()|[\]\/\\]/g, '\\$&') - .replace(/valueOf|for [^\]]+/g, '.+?') + '$' - ); - - /** - * Used to match ES6 template delimiters - * http://people.mozilla.org/~jorendorff/es6-draft.html#sec-7.8.6 - */ - var reEsTemplate = /\$\{((?:(?=\\?)\\?[\s\S])*?)}/g; - - /** Used to match "interpolate" template delimiters */ - var reInterpolate = /<%=([\s\S]+?)%>/g; - - /** Used to ensure capturing order of template delimiters */ - var reNoMatch = /($^)/; - - /** Used to match HTML characters */ - var reUnescapedHtml = /[&<>"']/g; - - /** Used to match unescaped characters in compiled string literals */ - var reUnescapedString = /['\n\r\t\u2028\u2029\\]/g; - - /** Used to fix the JScript [[DontEnum]] bug */ - var shadowed = [ - 'constructor', 'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable', - 'toLocaleString', 'toString', 'valueOf' - ]; - - /** Used to make template sourceURLs easier to identify */ - var templateCounter = 0; - - /** Native method shortcuts */ - var ceil = Math.ceil, - concat = arrayRef.concat, - floor = Math.floor, - getPrototypeOf = reNative.test(getPrototypeOf = Object.getPrototypeOf) && getPrototypeOf, - hasOwnProperty = objectRef.hasOwnProperty, - push = arrayRef.push, - propertyIsEnumerable = objectRef.propertyIsEnumerable, - slice = arrayRef.slice, - toString = objectRef.toString; - - /* Native method shortcuts for methods with the same name as other `lodash` methods */ - var nativeBind = reNative.test(nativeBind = slice.bind) && nativeBind, - nativeIsArray = reNative.test(nativeIsArray = Array.isArray) && nativeIsArray, - nativeIsFinite = window.isFinite, - nativeIsNaN = window.isNaN, - nativeKeys = reNative.test(nativeKeys = Object.keys) && nativeKeys, - nativeMax = Math.max, - nativeMin = Math.min, - nativeRandom = Math.random; - - /** `Object#toString` result shortcuts */ - var argsClass = '[object Arguments]', - arrayClass = '[object Array]', - boolClass = '[object Boolean]', - dateClass = '[object Date]', - funcClass = '[object Function]', - numberClass = '[object Number]', - objectClass = '[object Object]', - regexpClass = '[object RegExp]', - stringClass = '[object String]'; - - /** - * Detect the JScript [[DontEnum]] bug: - * - * In IE < 9 an objects own properties, shadowing non-enumerable ones, are - * made non-enumerable as well. - */ - var hasDontEnumBug; - - /** Detect if own properties are iterated after inherited properties (IE < 9) */ - var iteratesOwnLast; - - /** - * Detect if `Array#shift` and `Array#splice` augment array-like objects - * incorrectly: - * - * Firefox < 10, IE compatibility mode, and IE < 9 have buggy Array `shift()` - * and `splice()` functions that fail to remove the last element, `value[0]`, - * of array-like objects even though the `length` property is set to `0`. - * The `shift()` method is buggy in IE 8 compatibility mode, while `splice()` - * is buggy regardless of mode in IE < 9 and buggy in compatibility mode in IE 9. - */ - var hasObjectSpliceBug = (hasObjectSpliceBug = { '0': 1, 'length': 1 }, - arrayRef.splice.call(hasObjectSpliceBug, 0, 1), hasObjectSpliceBug[0]); - - /** Detect if an `arguments` object's indexes are non-enumerable (IE < 9) */ - var noArgsEnum = true; - - (function() { - var props = []; - function ctor() { this.x = 1; } - ctor.prototype = { 'valueOf': 1, 'y': 1 }; - for (var prop in new ctor) { props.push(prop); } - for (prop in arguments) { noArgsEnum = !prop; } - - hasDontEnumBug = !/valueOf/.test(props); - iteratesOwnLast = props[0] != 'x'; - }(1)); - - /** Detect if an `arguments` object's [[Class]] is unresolvable (Firefox < 4, IE < 9) */ - var noArgsClass = !isArguments(arguments); - - /** Detect if `Array#slice` cannot be used to convert strings to arrays (Opera < 10.52) */ - var noArraySliceOnStrings = slice.call('x')[0] != 'x'; - - /** - * Detect lack of support for accessing string characters by index: - * - * IE < 8 can't access characters by index and IE 8 can only access - * characters by index on string literals. - */ - var noCharByIndex = ('x'[0] + Object('x')[0]) != 'xx'; - - /** - * Detect if a node's [[Class]] is unresolvable (IE < 9) - * and that the JS engine won't error when attempting to coerce an object to - * a string without a `toString` property value of `typeof` "function". - */ - try { - var noNodeClass = ({ 'toString': 0 } + '', toString.call(window.document || 0) == objectClass); - } catch(e) { } - - /* Detect if `Function#bind` exists and is inferred to be fast (all but V8) */ - var isBindFast = nativeBind && /\n|Opera/.test(nativeBind + toString.call(window.opera)); - - /* Detect if `Object.keys` exists and is inferred to be fast (IE, Opera, V8) */ - var isKeysFast = nativeKeys && /^.+$|true/.test(nativeKeys + !!window.attachEvent); - - /** - * Detect if sourceURL syntax is usable without erroring: - * - * The JS engine in Adobe products, like InDesign, will throw a syntax error - * when it encounters a single line comment beginning with the `@` symbol. - * - * The JS engine in Narwhal will generate the function `function anonymous(){//}` - * and throw a syntax error. - * - * Avoid comments beginning `@` symbols in IE because they are part of its - * non-standard conditional compilation support. - * http://msdn.microsoft.com/en-us/library/121hztk3(v=vs.94).aspx - */ - try { - var useSourceURL = (Function('//@')(), !window.attachEvent); - } catch(e) { } - - /** Used to identify object classifications that `_.clone` supports */ - var cloneableClasses = {}; - cloneableClasses[argsClass] = cloneableClasses[funcClass] = false; - cloneableClasses[arrayClass] = cloneableClasses[boolClass] = cloneableClasses[dateClass] = - cloneableClasses[numberClass] = cloneableClasses[objectClass] = cloneableClasses[regexpClass] = - cloneableClasses[stringClass] = true; - - /** Used to determine if values are of the language type Object */ - var objectTypes = { - 'boolean': false, - 'function': true, - 'object': true, - 'number': false, - 'string': false, - 'undefined': false - }; - - /** Used to escape characters for inclusion in compiled string literals */ - var stringEscapes = { - '\\': '\\', - "'": "'", - '\n': 'n', - '\r': 'r', - '\t': 't', - '\u2028': 'u2028', - '\u2029': 'u2029' - }; - - /*--------------------------------------------------------------------------*/ - - /** - * The `lodash` function. - * - * @name _ - * @constructor - * @category Chaining - * @param {Mixed} value The value to wrap in a `lodash` instance. - * @returns {Object} Returns a `lodash` instance. - */ - function lodash(value) { - // exit early if already wrapped - if (value && value.__wrapped__) { - return value; - } - // allow invoking `lodash` without the `new` operator - if (!(this instanceof lodash)) { - return new lodash(value); - } - this.__wrapped__ = value; - } - - /** - * By default, the template delimiters used by Lo-Dash are similar to those in - * embedded Ruby (ERB). Change the following template settings to use alternative - * delimiters. - * - * @static - * @memberOf _ - * @type Object - */ - lodash.templateSettings = { - - /** - * Used to detect `data` property values to be HTML-escaped. - * - * @static - * @memberOf _.templateSettings - * @type RegExp - */ - 'escape': /<%-([\s\S]+?)%>/g, - - /** - * Used to detect code to be evaluated. - * - * @static - * @memberOf _.templateSettings - * @type RegExp - */ - 'evaluate': /<%([\s\S]+?)%>/g, - - /** - * Used to detect `data` property values to inject. - * - * @static - * @memberOf _.templateSettings - * @type RegExp - */ - 'interpolate': reInterpolate, - - /** - * Used to reference the data object in the template text. - * - * @static - * @memberOf _.templateSettings - * @type String - */ - 'variable': '' - }; - - /*--------------------------------------------------------------------------*/ - - /** - * The template used to create iterator functions. - * - * @private - * @param {Obect} data The data object used to populate the text. - * @returns {String} Returns the interpolated text. - */ - var iteratorTemplate = template( - // conditional strict mode - '<% if (obj.useStrict) { %>\'use strict\';\n<% } %>' + - - // the `iteratee` may be reassigned by the `top` snippet - 'var index, value, iteratee = <%= firstArg %>, ' + - // assign the `result` variable an initial value - 'result = <%= firstArg %>;\n' + - // exit early if the first argument is falsey - 'if (!<%= firstArg %>) return result;\n' + - // add code before the iteration branches - '<%= top %>;\n' + - - // array-like iteration: - '<% if (arrayLoop) { %>' + - 'var length = iteratee.length; index = -1;\n' + - 'if (typeof length == \'number\') {' + - - // add support for accessing string characters by index if needed - ' <% if (noCharByIndex) { %>\n' + - ' if (isString(iteratee)) {\n' + - ' iteratee = iteratee.split(\'\')\n' + - ' }' + - ' <% } %>\n' + - - // iterate over the array-like value - ' while (++index < length) {\n' + - ' value = iteratee[index];\n' + - ' <%= arrayLoop %>\n' + - ' }\n' + - '}\n' + - 'else {' + - - // object iteration: - // add support for iterating over `arguments` objects if needed - ' <% } else if (noArgsEnum) { %>\n' + - ' var length = iteratee.length; index = -1;\n' + - ' if (length && isArguments(iteratee)) {\n' + - ' while (++index < length) {\n' + - ' value = iteratee[index += \'\'];\n' + - ' <%= objectLoop %>\n' + - ' }\n' + - ' } else {' + - ' <% } %>' + - - // Firefox < 3.6, Opera > 9.50 - Opera < 11.60, and Safari < 5.1 - // (if the prototype or a property on the prototype has been set) - // incorrectly sets a function's `prototype` property [[Enumerable]] - // value to `true`. Because of this Lo-Dash standardizes on skipping - // the the `prototype` property of functions regardless of its - // [[Enumerable]] value. - ' <% if (!hasDontEnumBug) { %>\n' + - ' var skipProto = typeof iteratee == \'function\' && \n' + - ' propertyIsEnumerable.call(iteratee, \'prototype\');\n' + - ' <% } %>' + - - // iterate own properties using `Object.keys` if it's fast - ' <% if (isKeysFast && useHas) { %>\n' + - ' var ownIndex = -1,\n' + - ' ownProps = objectTypes[typeof iteratee] ? nativeKeys(iteratee) : [],\n' + - ' length = ownProps.length;\n\n' + - ' while (++ownIndex < length) {\n' + - ' index = ownProps[ownIndex];\n' + - ' <% if (!hasDontEnumBug) { %>if (!(skipProto && index == \'prototype\')) {\n <% } %>' + - ' value = iteratee[index];\n' + - ' <%= objectLoop %>\n' + - ' <% if (!hasDontEnumBug) { %>}\n<% } %>' + - ' }' + - - // else using a for-in loop - ' <% } else { %>\n' + - ' for (index in iteratee) {<%' + - ' if (!hasDontEnumBug || useHas) { %>\n if (<%' + - ' if (!hasDontEnumBug) { %>!(skipProto && index == \'prototype\')<% }' + - ' if (!hasDontEnumBug && useHas) { %> && <% }' + - ' if (useHas) { %>hasOwnProperty.call(iteratee, index)<% }' + - ' %>) {' + - ' <% } %>\n' + - ' value = iteratee[index];\n' + - ' <%= objectLoop %>;' + - ' <% if (!hasDontEnumBug || useHas) { %>\n }<% } %>\n' + - ' }' + - ' <% } %>' + - - // Because IE < 9 can't set the `[[Enumerable]]` attribute of an - // existing property and the `constructor` property of a prototype - // defaults to non-enumerable, Lo-Dash skips the `constructor` - // property when it infers it's iterating over a `prototype` object. - ' <% if (hasDontEnumBug) { %>\n\n' + - ' var ctor = iteratee.constructor;\n' + - ' <% for (var k = 0; k < 7; k++) { %>\n' + - ' index = \'<%= shadowed[k] %>\';\n' + - ' if (<%' + - ' if (shadowed[k] == \'constructor\') {' + - ' %>!(ctor && ctor.prototype === iteratee) && <%' + - ' } %>hasOwnProperty.call(iteratee, index)) {\n' + - ' value = iteratee[index];\n' + - ' <%= objectLoop %>\n' + - ' }' + - ' <% } %>' + - ' <% } %>' + - ' <% if (arrayLoop || noArgsEnum) { %>\n}<% } %>\n' + - - // add code to the bottom of the iteration function - '<%= bottom %>;\n' + - // finally, return the `result` - 'return result' - ); - - /** - * Reusable iterator options shared by `forEach`, `forIn`, and `forOwn`. - */ - var forEachIteratorOptions = { - 'args': 'collection, callback, thisArg', - 'top': 'callback = createCallback(callback, thisArg)', - 'arrayLoop': 'if (callback(value, index, collection) === false) return result', - 'objectLoop': 'if (callback(value, index, collection) === false) return result' - }; - - /** Reusable iterator options for `defaults`, and `extend` */ - var extendIteratorOptions = { - 'useHas': false, - 'args': 'object', - 'top': - 'for (var argsIndex = 1, argsLength = arguments.length; argsIndex < argsLength; argsIndex++) {\n' + - ' if (iteratee = arguments[argsIndex]) {', - 'objectLoop': 'result[index] = value', - 'bottom': ' }\n}' - }; - - /** Reusable iterator options for `forIn` and `forOwn` */ - var forOwnIteratorOptions = { - 'arrayLoop': null - }; - - /*--------------------------------------------------------------------------*/ - - /** - * Creates a function optimized to search large arrays for a given `value`, - * starting at `fromIndex`, using strict equality for comparisons, i.e. `===`. - * - * @private - * @param {Array} array The array to search. - * @param {Mixed} value The value to search for. - * @param {Number} [fromIndex=0] The index to search from. - * @param {Number} [largeSize=30] The length at which an array is considered large. - * @returns {Boolean} Returns `true` if `value` is found, else `false`. - */ - function cachedContains(array, fromIndex, largeSize) { - fromIndex || (fromIndex = 0); - - var length = array.length, - isLarge = (length - fromIndex) >= (largeSize || largeArraySize); - - if (isLarge) { - var cache = {}, - index = fromIndex - 1; - - while (++index < length) { - // manually coerce `value` to a string because `hasOwnProperty`, in some - // older versions of Firefox, coerces objects incorrectly - var key = array[index] + ''; - (hasOwnProperty.call(cache, key) ? cache[key] : (cache[key] = [])).push(array[index]); - } - } - return function(value) { - if (isLarge) { - var key = value + ''; - return hasOwnProperty.call(cache, key) && indexOf(cache[key], value) > -1; - } - return indexOf(array, value, fromIndex) > -1; - } - } - - /** - * Used by `_.max` and `_.min` as the default `callback` when a given - * `collection` is a string value. - * - * @private - * @param {String} value The character to inspect. - * @returns {Number} Returns the code unit of given character. - */ - function charAtCallback(value) { - return value.charCodeAt(0); - } - - /** - * Used by `sortBy` to compare transformed `collection` values, stable sorting - * them in ascending order. - * - * @private - * @param {Object} a The object to compare to `b`. - * @param {Object} b The object to compare to `a`. - * @returns {Number} Returns the sort order indicator of `1` or `-1`. - */ - function compareAscending(a, b) { - var ai = a.index, - bi = b.index; - - a = a.criteria; - b = b.criteria; - - // ensure a stable sort in V8 and other engines - // http://code.google.com/p/v8/issues/detail?id=90 - if (a !== b) { - if (a > b || a === undefined) { - return 1; - } - if (a < b || b === undefined) { - return -1; - } - } - return ai < bi ? -1 : 1; - } - - /** - * Creates a function that, when called, invokes `func` with the `this` - * binding of `thisArg` and prepends any `partailArgs` to the arguments passed - * to the bound function. - * - * @private - * @param {Function|String} func The function to bind or the method name. - * @param {Mixed} [thisArg] The `this` binding of `func`. - * @param {Array} partialArgs An array of arguments to be partially applied. - * @returns {Function} Returns the new bound function. - */ - function createBound(func, thisArg, partialArgs) { - var isFunc = isFunction(func), - isPartial = !partialArgs, - methodName = func; - - // juggle arguments - if (isPartial) { - partialArgs = thisArg; - } - - function bound() { - // `Function#bind` spec - // http://es5.github.com/#x15.3.4.5 - var args = arguments, - thisBinding = isPartial ? this : thisArg; - - if (!isFunc) { - func = thisArg[methodName]; - } - if (partialArgs.length) { - args = args.length - ? partialArgs.concat(slice.call(args)) - : partialArgs; - } - if (this instanceof bound) { - // get `func` instance if `bound` is invoked in a `new` expression - noop.prototype = func.prototype; - thisBinding = new noop; - - // mimic the constructor's `return` behavior - // http://es5.github.com/#x13.2.2 - var result = func.apply(thisBinding, args); - return isObject(result) - ? result - : thisBinding - } - return func.apply(thisBinding, args); - } - return bound; - } - - /** - * Produces an iteration callback bound to an optional `thisArg`. If `func` is - * a property name, the callback will return the property value for a given element. - * - * @private - * @param {Function|String} [func=identity|property] The function called per - * iteration or property name to query. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Function} Returns a callback function. - */ - function createCallback(func, thisArg) { - if (!func) { - return identity; - } - if (typeof func != 'function') { - return function(object) { - return object[func]; - }; - } - if (thisArg !== undefined) { - return function(value, index, object) { - return func.call(thisArg, value, index, object); - }; - } - return func; - } - - /** - * Creates compiled iteration functions. - * - * @private - * @param {Object} [options1, options2, ...] The compile options object(s). - * useHas - A boolean to specify using `hasOwnProperty` checks in the object loop. - * args - A string of comma separated arguments the iteration function will accept. - * top - A string of code to execute before the iteration branches. - * arrayLoop - A string of code to execute in the array loop. - * objectLoop - A string of code to execute in the object loop. - * bottom - A string of code to execute after the iteration branches. - * - * @returns {Function} Returns the compiled function. - */ - function createIterator() { - var data = { - 'arrayLoop': '', - 'bottom': '', - 'hasDontEnumBug': hasDontEnumBug, - 'isKeysFast': isKeysFast, - 'objectLoop': '', - 'noArgsEnum': noArgsEnum, - 'noCharByIndex': noCharByIndex, - 'shadowed': shadowed, - 'top': '', - 'useHas': true - }; - - // merge options into a template data object - for (var object, index = 0; object = arguments[index]; index++) { - for (var key in object) { - data[key] = object[key]; - } - } - var args = data.args; - data.firstArg = /^[^,]+/.exec(args)[0]; - - // create the function factory - var factory = Function( - 'createCallback, hasOwnProperty, isArguments, isString, objectTypes, ' + - 'nativeKeys, propertyIsEnumerable', - 'return function(' + args + ') {\n' + iteratorTemplate(data) + '\n}' - ); - // return the compiled function - return factory( - createCallback, hasOwnProperty, isArguments, isString, objectTypes, - nativeKeys, propertyIsEnumerable - ); - } - - /** - * Used by `template` to escape characters for inclusion in compiled - * string literals. - * - * @private - * @param {String} match The matched character to escape. - * @returns {String} Returns the escaped character. - */ - function escapeStringChar(match) { - return '\\' + stringEscapes[match]; - } - - /** - * Used by `escape` to convert characters to HTML entities. - * - * @private - * @param {String} match The matched character to escape. - * @returns {String} Returns the escaped character. - */ - function escapeHtmlChar(match) { - return htmlEscapes[match]; - } - - /** - * A no-operation function. - * - * @private - */ - function noop() { - // no operation performed - } - - /** - * Used by `unescape` to convert HTML entities to characters. - * - * @private - * @param {String} match The matched character to unescape. - * @returns {String} Returns the unescaped character. - */ - function unescapeHtmlChar(match) { - return htmlUnescapes[match]; - } - - /*--------------------------------------------------------------------------*/ - - /** - * Checks if `value` is an `arguments` object. - * - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if the `value` is an `arguments` object, else `false`. - * @example - * - * (function() { return _.isArguments(arguments); })(1, 2, 3); - * // => true - * - * _.isArguments([1, 2, 3]); - * // => false - */ - function isArguments(value) { - return toString.call(value) == argsClass; - } - // fallback for browsers that can't detect `arguments` objects by [[Class]] - if (noArgsClass) { - isArguments = function(value) { - return value ? hasOwnProperty.call(value, 'callee') : false; - }; - } - - /** - * Iterates over `object`'s own and inherited enumerable properties, executing - * the `callback` for each property. The `callback` is bound to `thisArg` and - * invoked with three arguments; (value, key, object). Callbacks may exit iteration - * early by explicitly returning `false`. - * - * @static - * @memberOf _ - * @category Objects - * @param {Object} object The object to iterate over. - * @param {Function} callback The function called per iteration. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Object} Returns `object`. - * @example - * - * function Dog(name) { - * this.name = name; - * } - * - * Dog.prototype.bark = function() { - * alert('Woof, woof!'); - * }; - * - * _.forIn(new Dog('Dagny'), function(value, key) { - * alert(key); - * }); - * // => alerts 'name' and 'bark' (order is not guaranteed) - */ - var forIn = createIterator(forEachIteratorOptions, forOwnIteratorOptions, { - 'useHas': false - }); - - /** - * Iterates over `object`'s own enumerable properties, executing the `callback` - * for each property. The `callback` is bound to `thisArg` and invoked with three - * arguments; (value, key, object). Callbacks may exit iteration early by explicitly - * returning `false`. - * - * @static - * @memberOf _ - * @category Objects - * @param {Object} object The object to iterate over. - * @param {Function} callback The function called per iteration. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Object} Returns `object`. - * @example - * - * _.forOwn({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) { - * alert(key); - * }); - * // => alerts '0', '1', and 'length' (order is not guaranteed) - */ - var forOwn = createIterator(forEachIteratorOptions, forOwnIteratorOptions); - - /** - * A fallback implementation of `isPlainObject` that checks if a given `value` - * is an object created by the `Object` constructor, assuming objects created - * by the `Object` constructor have no inherited enumerable properties and that - * there are no `Object.prototype` extensions. - * - * @private - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if `value` is a plain object, else `false`. - */ - function shimIsPlainObject(value) { - // avoid non-objects and false positives for `arguments` objects - var result = false; - if (!(value && typeof value == 'object') || isArguments(value)) { - return result; - } - // IE < 9 presents DOM nodes as `Object` objects except they have `toString` - // methods that are `typeof` "string" and still can coerce nodes to strings. - // Also check that the constructor is `Object` (i.e. `Object instanceof Object`) - var ctor = value.constructor; - if ((!noNodeClass || !(typeof value.toString != 'function' && typeof (value + '') == 'string')) && - (!isFunction(ctor) || ctor instanceof ctor)) { - // IE < 9 iterates inherited properties before own properties. If the first - // iterated property is an object's own property then there are no inherited - // enumerable properties. - if (iteratesOwnLast) { - forIn(value, function(value, key, object) { - result = !hasOwnProperty.call(object, key); - return false; - }); - return result === false; - } - // In most environments an object's own properties are iterated before - // its inherited properties. If the last iterated property is an object's - // own property then there are no inherited enumerable properties. - forIn(value, function(value, key) { - result = key; - }); - return result === false || hasOwnProperty.call(value, result); - } - return result; - } - - /** - * A fallback implementation of `Object.keys` that produces an array of the - * given object's own enumerable property names. - * - * @private - * @param {Object} object The object to inspect. - * @returns {Array} Returns a new array of property names. - */ - function shimKeys(object) { - var result = []; - forOwn(object, function(value, key) { - result.push(key); - }); - return result; - } - - /** - * Used to convert characters to HTML entities: - * - * Though the `>` character is escaped for symmetry, characters like `>` and `/` - * don't require escaping in HTML and have no special meaning unless they're part - * of a tag or an unquoted attribute value. - * http://mathiasbynens.be/notes/ambiguous-ampersands (under "semi-related fun fact") - */ - var htmlEscapes = { - '&': '&', - '<': '<', - '>': '>', - '"': '"', - "'": ''' - }; - - /** Used to convert HTML entities to characters */ - var htmlUnescapes = invert(htmlEscapes); - - /*--------------------------------------------------------------------------*/ - - /** - * Creates a clone of `value`. If `deep` is `true`, all nested objects will - * also be cloned otherwise they will be assigned by reference. Functions, DOM - * nodes, `arguments` objects, and objects created by constructors other than - * `Object` are **not** cloned. - * - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to clone. - * @param {Boolean} deep A flag to indicate a deep clone. - * @param- {Object} [guard] Internally used to allow this method to work with - * others like `_.map` without using their callback `index` argument for `deep`. - * @param- {Array} [stackA=[]] Internally used to track traversed source objects. - * @param- {Array} [stackB=[]] Internally used to associate clones with their - * source counterparts. - * @returns {Mixed} Returns the cloned `value`. - * @example - * - * var stooges = [ - * { 'name': 'moe', 'age': 40 }, - * { 'name': 'larry', 'age': 50 }, - * { 'name': 'curly', 'age': 60 } - * ]; - * - * _.clone({ 'name': 'moe' }); - * // => { 'name': 'moe' } - * - * var shallow = _.clone(stooges); - * shallow[0] === stooges[0]; - * // => true - * - * var deep = _.clone(stooges, true); - * shallow[0] === stooges[0]; - * // => false - */ - function clone(value, deep, guard, stackA, stackB) { - if (value == null) { - return value; - } - if (guard) { - deep = false; - } - // inspect [[Class]] - var isObj = isObject(value); - if (isObj) { - // don't clone `arguments` objects, functions, or non-object Objects - var className = toString.call(value); - if (!cloneableClasses[className] || (noArgsClass && isArguments(value))) { - return value; - } - var isArr = className == arrayClass; - isObj = isArr || (className == objectClass ? isPlainObject(value) : isObj); - } - // shallow clone - if (!isObj || !deep) { - // don't clone functions - return isObj - ? (isArr ? slice.call(value) : extend({}, value)) - : value; - } - - var ctor = value.constructor; - switch (className) { - case boolClass: - case dateClass: - return new ctor(+value); - - case numberClass: - case stringClass: - return new ctor(value); - - case regexpClass: - return ctor(value.source, reFlags.exec(value)); - } - // check for circular references and return corresponding clone - stackA || (stackA = []); - stackB || (stackB = []); - - var length = stackA.length; - while (length--) { - if (stackA[length] == value) { - return stackB[length]; - } - } - // init cloned object - var result = isArr ? ctor(value.length) : {}; - - // add the source value to the stack of traversed objects - // and associate it with its clone - stackA.push(value); - stackB.push(result); - - // recursively populate clone (susceptible to call stack limits) - (isArr ? forEach : forOwn)(value, function(objValue, key) { - result[key] = clone(objValue, deep, null, stackA, stackB); - }); - - return result; - } - - /** - * Assigns enumerable properties of the default object(s) to the `destination` - * object for all `destination` properties that resolve to `null`/`undefined`. - * Once a property is set, additional defaults of the same property will be - * ignored. - * - * @static - * @memberOf _ - * @category Objects - * @param {Object} object The destination object. - * @param {Object} [default1, default2, ...] The default objects. - * @returns {Object} Returns the destination object. - * @example - * - * var iceCream = { 'flavor': 'chocolate' }; - * _.defaults(iceCream, { 'flavor': 'vanilla', 'sprinkles': 'rainbow' }); - * // => { 'flavor': 'chocolate', 'sprinkles': 'rainbow' } - */ - var defaults = createIterator(extendIteratorOptions, { - 'objectLoop': 'if (result[index] == null) ' + extendIteratorOptions.objectLoop - }); - - /** - * Assigns enumerable properties of the source object(s) to the `destination` - * object. Subsequent sources will overwrite propery assignments of previous - * sources. - * - * @static - * @memberOf _ - * @category Objects - * @param {Object} object The destination object. - * @param {Object} [source1, source2, ...] The source objects. - * @returns {Object} Returns the destination object. - * @example - * - * _.extend({ 'name': 'moe' }, { 'age': 40 }); - * // => { 'name': 'moe', 'age': 40 } - */ - var extend = createIterator(extendIteratorOptions); - - /** - * Creates a sorted array of all enumerable properties, own and inherited, - * of `object` that have function values. - * - * @static - * @memberOf _ - * @alias methods - * @category Objects - * @param {Object} object The object to inspect. - * @returns {Array} Returns a new array of property names that have function values. - * @example - * - * _.functions(_); - * // => ['all', 'any', 'bind', 'bindAll', 'clone', 'compact', 'compose', ...] - */ - function functions(object) { - var result = []; - forIn(object, function(value, key) { - if (isFunction(value)) { - result.push(key); - } - }); - return result.sort(); - } - - /** - * Checks if the specified object `property` exists and is a direct property, - * instead of an inherited property. - * - * @static - * @memberOf _ - * @category Objects - * @param {Object} object The object to check. - * @param {String} property The property to check for. - * @returns {Boolean} Returns `true` if key is a direct property, else `false`. - * @example - * - * _.has({ 'a': 1, 'b': 2, 'c': 3 }, 'b'); - * // => true - */ - function has(object, property) { - return object ? hasOwnProperty.call(object, property) : false; - } - - /** - * Creates an object composed of the inverted keys and values of the given `object`. - * - * @static - * @memberOf _ - * @category Objects - * @param {Object} object The object to invert. - * @returns {Object} Returns the created inverted object. - * @example - * - * _.invert({ 'first': 'Moe', 'second': 'Larry', 'third': 'Curly' }); - * // => { 'Moe': 'first', 'Larry': 'second', 'Curly': 'third' } (order is not guaranteed) - */ - function invert(object) { - var result = {}; - forOwn(object, function(value, key) { - result[value] = key; - }); - return result; - } - - /** - * Checks if `value` is an array. - * - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if the `value` is an array, else `false`. - * @example - * - * (function() { return _.isArray(arguments); })(); - * // => false - * - * _.isArray([1, 2, 3]); - * // => true - */ - var isArray = nativeIsArray || function(value) { - return toString.call(value) == arrayClass; - }; - - /** - * Checks if `value` is a boolean (`true` or `false`) value. - * - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if the `value` is a boolean value, else `false`. - * @example - * - * _.isBoolean(null); - * // => false - */ - function isBoolean(value) { - return value === true || value === false || toString.call(value) == boolClass; - } - - /** - * Checks if `value` is a date. - * - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if the `value` is a date, else `false`. - * @example - * - * _.isDate(new Date); - * // => true - */ - function isDate(value) { - return toString.call(value) == dateClass; - } - - /** - * Checks if `value` is a DOM element. - * - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if the `value` is a DOM element, else `false`. - * @example - * - * _.isElement(document.body); - * // => true - */ - function isElement(value) { - return value ? value.nodeType === 1 : false; - } - - /** - * Checks if `value` is empty. Arrays, strings, or `arguments` objects with a - * length of `0` and objects with no own enumerable properties are considered - * "empty". - * - * @static - * @memberOf _ - * @category Objects - * @param {Array|Object|String} value The value to inspect. - * @returns {Boolean} Returns `true` if the `value` is empty, else `false`. - * @example - * - * _.isEmpty([1, 2, 3]); - * // => false - * - * _.isEmpty({}); - * // => true - * - * _.isEmpty(''); - * // => true - */ - function isEmpty(value) { - var result = true; - if (!value) { - return result; - } - var className = toString.call(value), - length = value.length; - - if ((className == arrayClass || className == stringClass || - className == argsClass || (noArgsClass && isArguments(value))) || - (className == objectClass && typeof length == 'number' && isFunction(value.splice))) { - return !length; - } - forOwn(value, function() { - return (result = false); - }); - return result; - } - - /** - * Performs a deep comparison between two values to determine if they are - * equivalent to each other. - * - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} a The value to compare. - * @param {Mixed} b The other value to compare. - * @param- {Object} [stackA=[]] Internally used track traversed `a` objects. - * @param- {Object} [stackB=[]] Internally used track traversed `b` objects. - * @returns {Boolean} Returns `true` if the values are equvalent, else `false`. - * @example - * - * var moe = { 'name': 'moe', 'luckyNumbers': [13, 27, 34] }; - * var clone = { 'name': 'moe', 'luckyNumbers': [13, 27, 34] }; - * - * moe == clone; - * // => false - * - * _.isEqual(moe, clone); - * // => true - */ - function isEqual(a, b, stackA, stackB) { - // exit early for identical values - if (a === b) { - // treat `+0` vs. `-0` as not equal - return a !== 0 || (1 / a == 1 / b); - } - // a strict comparison is necessary because `null == undefined` - if (a == null || b == null) { - return a === b; - } - // compare [[Class]] names - var className = toString.call(a); - if (className != toString.call(b)) { - return false; - } - switch (className) { - case boolClass: - case dateClass: - // coerce dates and booleans to numbers, dates to milliseconds and booleans - // to `1` or `0`, treating invalid dates coerced to `NaN` as not equal - return +a == +b; - - case numberClass: - // treat `NaN` vs. `NaN` as equal - return a != +a - ? b != +b - // but treat `+0` vs. `-0` as not equal - : (a == 0 ? (1 / a == 1 / b) : a == +b); - - case regexpClass: - case stringClass: - // coerce regexes to strings (http://es5.github.com/#x15.10.6.4) - // treat string primitives and their corresponding object instances as equal - return a == b + ''; - } - // exit early, in older browsers, if `a` is array-like but not `b` - var isArr = className == arrayClass || className == argsClass; - if (noArgsClass && !isArr && (isArr = isArguments(a)) && !isArguments(b)) { - return false; - } - if (!isArr) { - // unwrap any `lodash` wrapped values - if (a.__wrapped__ || b.__wrapped__) { - return isEqual(a.__wrapped__ || a, b.__wrapped__ || b); - } - // exit for functions and DOM nodes - if (className != objectClass || (noNodeClass && ( - (typeof a.toString != 'function' && typeof (a + '') == 'string') || - (typeof b.toString != 'function' && typeof (b + '') == 'string')))) { - return false; - } - var ctorA = a.constructor, - ctorB = b.constructor; - - // non `Object` object instances with different constructors are not equal - if (ctorA != ctorB && !( - isFunction(ctorA) && ctorA instanceof ctorA && - isFunction(ctorB) && ctorB instanceof ctorB - )) { - return false; - } - } - // assume cyclic structures are equal - // the algorithm for detecting cyclic structures is adapted from ES 5.1 - // section 15.12.3, abstract operation `JO` (http://es5.github.com/#x15.12.3) - stackA || (stackA = []); - stackB || (stackB = []); - - var length = stackA.length; - while (length--) { - if (stackA[length] == a) { - return stackB[length] == b; - } - } - - var index = -1, - result = true, - size = 0; - - // add `a` and `b` to the stack of traversed objects - stackA.push(a); - stackB.push(b); - - // recursively compare objects and arrays (susceptible to call stack limits) - if (isArr) { - // compare lengths to determine if a deep comparison is necessary - size = a.length; - result = size == b.length; - - if (result) { - // deep compare the contents, ignoring non-numeric properties - while (size--) { - if (!(result = isEqual(a[size], b[size], stackA, stackB))) { - break; - } - } - } - return result; - } - // deep compare objects - for (var key in a) { - if (hasOwnProperty.call(a, key)) { - // count the number of properties. - size++; - // deep compare each property value. - if (!(hasOwnProperty.call(b, key) && isEqual(a[key], b[key], stackA, stackB))) { - return false; - } - } - } - // ensure both objects have the same number of properties - for (key in b) { - // The JS engine in Adobe products, like InDesign, has a bug that causes - // `!size--` to throw an error so it must be wrapped in parentheses. - // https://github.com/documentcloud/underscore/issues/355 - if (hasOwnProperty.call(b, key) && !(size--)) { - // `size` will be `-1` if `b` has more properties than `a` - return false; - } - } - // handle JScript [[DontEnum]] bug - if (hasDontEnumBug) { - while (++index < 7) { - key = shadowed[index]; - if (hasOwnProperty.call(a, key) && - !(hasOwnProperty.call(b, key) && isEqual(a[key], b[key], stackA, stackB))) { - return false; - } - } - } - return true; - } - - /** - * Checks if `value` is, or can be coerced to, a finite number. - * - * Note: This is not the same as native `isFinite`, which will return true for - * booleans and empty strings. See http://es5.github.com/#x15.1.2.5. - * - * @deprecated - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if the `value` is a finite number, else `false`. - * @example - * - * _.isFinite(-101); - * // => true - * - * _.isFinite('10'); - * // => true - * - * _.isFinite(true); - * // => false - * - * _.isFinite(''); - * // => false - * - * _.isFinite(Infinity); - * // => false - */ - function isFinite(value) { - return nativeIsFinite(value) && !nativeIsNaN(parseFloat(value)); - } - - /** - * Checks if `value` is a function. - * - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if the `value` is a function, else `false`. - * @example - * - * _.isFunction(_); - * // => true - */ - function isFunction(value) { - return typeof value == 'function'; - } - // fallback for older versions of Chrome and Safari - if (isFunction(/x/)) { - isFunction = function(value) { - return toString.call(value) == funcClass; - }; - } - - /** - * Checks if `value` is the language type of Object. - * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) - * - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if the `value` is an object, else `false`. - * @example - * - * _.isObject({}); - * // => true - * - * _.isObject([1, 2, 3]); - * // => true - * - * _.isObject(1); - * // => false - */ - function isObject(value) { - // check if the value is the ECMAScript language type of Object - // http://es5.github.com/#x8 - // and avoid a V8 bug - // http://code.google.com/p/v8/issues/detail?id=2291 - return value ? objectTypes[typeof value] : false; - } - - /** - * Checks if `value` is `NaN`. - * - * Note: This is not the same as native `isNaN`, which will return true for - * `undefined` and other values. See http://es5.github.com/#x15.1.2.4. - * - * @deprecated - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if the `value` is `NaN`, else `false`. - * @example - * - * _.isNaN(NaN); - * // => true - * - * _.isNaN(new Number(NaN)); - * // => true - * - * isNaN(undefined); - * // => true - * - * _.isNaN(undefined); - * // => false - */ - function isNaN(value) { - // `NaN` as a primitive is the only value that is not equal to itself - // (perform the [[Class]] check first to avoid errors with some host objects in IE) - return toString.call(value) == numberClass && value != +value - } - - /** - * Checks if `value` is `null`. - * - * @deprecated - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if the `value` is `null`, else `false`. - * @example - * - * _.isNull(null); - * // => true - * - * _.isNull(undefined); - * // => false - */ - function isNull(value) { - return value === null; - } - - /** - * Checks if `value` is a number. - * - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if the `value` is a number, else `false`. - * @example - * - * _.isNumber(8.4 * 5); - * // => true - */ - function isNumber(value) { - return toString.call(value) == numberClass; - } - - /** - * Checks if a given `value` is an object created by the `Object` constructor. - * - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if `value` is a plain object, else `false`. - * @example - * - * function Stooge(name, age) { - * this.name = name; - * this.age = age; - * } - * - * _.isPlainObject(new Stooge('moe', 40)); - * // => false - * - * _.isPlainObject([1, 2, 3]); - * // => false - * - * _.isPlainObject({ 'name': 'moe', 'age': 40 }); - * // => true - */ - var isPlainObject = !getPrototypeOf ? shimIsPlainObject : function(value) { - if (!(value && typeof value == 'object')) { - return false; - } - var valueOf = value.valueOf, - objProto = typeof valueOf == 'function' && (objProto = getPrototypeOf(valueOf)) && getPrototypeOf(objProto); - - return objProto - ? value == objProto || (getPrototypeOf(value) == objProto && !isArguments(value)) - : shimIsPlainObject(value); - }; - - /** - * Checks if `value` is a regular expression. - * - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if the `value` is a regular expression, else `false`. - * @example - * - * _.isRegExp(/moe/); - * // => true - */ - function isRegExp(value) { - return toString.call(value) == regexpClass; - } - - /** - * Checks if `value` is a string. - * - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if the `value` is a string, else `false`. - * @example - * - * _.isString('moe'); - * // => true - */ - function isString(value) { - return toString.call(value) == stringClass; - } - - /** - * Checks if `value` is `undefined`. - * - * @deprecated - * @static - * @memberOf _ - * @category Objects - * @param {Mixed} value The value to check. - * @returns {Boolean} Returns `true` if the `value` is `undefined`, else `false`. - * @example - * - * _.isUndefined(void 0); - * // => true - */ - function isUndefined(value) { - return value === undefined; - } - - /** - * Creates an array composed of the own enumerable property names of `object`. - * - * @static - * @memberOf _ - * @category Objects - * @param {Object} object The object to inspect. - * @returns {Array} Returns a new array of property names. - * @example - * - * _.keys({ 'one': 1, 'two': 2, 'three': 3 }); - * // => ['one', 'two', 'three'] (order is not guaranteed) - */ - var keys = !nativeKeys ? shimKeys : function(object) { - // avoid iterating over the `prototype` property - return typeof object == 'function' && propertyIsEnumerable.call(object, 'prototype') - ? shimKeys(object) - : (isObject(object) ? nativeKeys(object) : []); - }; - - /** - * Merges enumerable properties of the source object(s) into the `destination` - * object. Subsequent sources will overwrite propery assignments of previous - * sources. - * - * @static - * @memberOf _ - * @category Objects - * @param {Object} object The destination object. - * @param {Object} [source1, source2, ...] The source objects. - * @param- {Object} [indicator] Internally used to indicate that the `stack` - * argument is an array of traversed objects instead of another source object. - * @param- {Array} [stackA=[]] Internally used to track traversed source objects. - * @param- {Array} [stackB=[]] Internally used to associate values with their - * source counterparts. - * @returns {Object} Returns the destination object. - * @example - * - * var stooges = [ - * { 'name': 'moe' }, - * { 'name': 'larry' } - * ]; - * - * var ages = [ - * { 'age': 40 }, - * { 'age': 50 } - * ]; - * - * _.merge(stooges, ages); - * // => [{ 'name': 'moe', 'age': 40 }, { 'name': 'larry', 'age': 50 }] - */ - function merge(object, source, indicator) { - var args = arguments, - index = 0, - length = 2, - stackA = args[3], - stackB = args[4]; - - if (indicator !== objectRef) { - stackA = []; - stackB = []; - length = args.length; - } - while (++index < length) { - forOwn(args[index], function(source, key) { - var found, isArr, value; - if (source && ((isArr = isArray(source)) || isPlainObject(source))) { - // avoid merging previously merged cyclic sources - var stackLength = stackA.length; - while (stackLength--) { - found = stackA[stackLength] == source; - if (found) { - break; - } - } - if (found) { - object[key] = stackB[stackLength]; - } - else { - // add `source` and associated `value` to the stack of traversed objects - stackA.push(source); - stackB.push(value = (value = object[key], isArr) - ? (isArray(value) ? value : []) - : (isPlainObject(value) ? value : {}) - ); - // recursively merge objects and arrays (susceptible to call stack limits) - object[key] = merge(value, source, objectRef, stackA, stackB); - } - } else if (source != null) { - object[key] = source; - } - }); - } - return object; - } - - /** - * Creates a shallow clone of `object` excluding the specified properties. - * Property names may be specified as individual arguments or as arrays of - * property names. If `callback` is passed, it will be executed for each property - * in the `object`, omitting the properties `callback` returns truthy for. The - * `callback` is bound to `thisArg` and invoked with three arguments; (value, key, object). - * - * @static - * @memberOf _ - * @category Objects - * @param {Object} object The source object. - * @param {Function|String} callback|[prop1, prop2, ...] The properties to omit - * or the function called per iteration. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Object} Returns an object without the omitted properties. - * @example - * - * _.omit({ 'name': 'moe', 'age': 40, 'userid': 'moe1' }, 'userid'); - * // => { 'name': 'moe', 'age': 40 } - * - * _.omit({ 'name': 'moe', '_hint': 'knucklehead', '_seed': '96c4eb' }, function(value, key) { - * return key.charAt(0) == '_'; - * }); - * // => { 'name': 'moe' } - */ - function omit(object, callback, thisArg) { - var isFunc = typeof callback == 'function', - result = {}; - - if (isFunc) { - callback = createCallback(callback, thisArg); - } else { - var props = concat.apply(arrayRef, arguments); - } - forIn(object, function(value, key, object) { - if (isFunc - ? !callback(value, key, object) - : indexOf(props, key, 1) < 0 - ) { - result[key] = value; - } - }); - return result; - } - - /** - * Creates a two dimensional array of the given object's key-value pairs, - * i.e. `[[key1, value1], [key2, value2]]`. - * - * @static - * @memberOf _ - * @category Objects - * @param {Object} object The object to inspect. - * @returns {Array} Returns new array of key-value pairs. - * @example - * - * _.pairs({ 'moe': 30, 'larry': 40, 'curly': 50 }); - * // => [['moe', 30], ['larry', 40], ['curly', 50]] (order is not guaranteed) - */ - function pairs(object) { - var result = []; - forOwn(object, function(value, key) { - result.push([key, value]); - }); - return result; - } - - /** - * Creates a shallow clone of `object` composed of the specified properties. - * Property names may be specified as individual arguments or as arrays of - * property names. If `callback` is passed, it will be executed for each property - * in the `object`, picking the properties `callback` returns truthy for. The - * `callback` is bound to `thisArg` and invoked with three arguments; (value, key, object). - * - * @static - * @memberOf _ - * @category Objects - * @param {Object} object The source object. - * @param {Function|String} callback|[prop1, prop2, ...] The properties to pick - * or the function called per iteration. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Object} Returns an object composed of the picked properties. - * @example - * - * _.pick({ 'name': 'moe', 'age': 40, 'userid': 'moe1' }, 'name', 'age'); - * // => { 'name': 'moe', 'age': 40 } - * - * _.pick({ 'name': 'moe', '_hint': 'knucklehead', '_seed': '96c4eb' }, function(value, key) { - * return key.charAt(0) != '_'; - * }); - * // => { 'name': 'moe' } - */ - function pick(object, callback, thisArg) { - var result = {}; - if (typeof callback != 'function') { - var index = 0, - props = concat.apply(arrayRef, arguments), - length = props.length; - - while (++index < length) { - var key = props[index]; - if (key in object) { - result[key] = object[key]; - } - } - } else { - callback = createCallback(callback, thisArg); - forIn(object, function(value, key, object) { - if (callback(value, key, object)) { - result[key] = value; - } - }); - } - return result; - } - - /** - * Creates an array composed of the own enumerable property values of `object`. - * - * @static - * @memberOf _ - * @category Objects - * @param {Object} object The object to inspect. - * @returns {Array} Returns a new array of property values. - * @example - * - * _.values({ 'one': 1, 'two': 2, 'three': 3 }); - * // => [1, 2, 3] - */ - function values(object) { - var result = []; - forOwn(object, function(value) { - result.push(value); - }); - return result; - } - - /*--------------------------------------------------------------------------*/ - - /** - * Checks if a given `target` element is present in a `collection` using strict - * equality for comparisons, i.e. `===`. If `fromIndex` is negative, it is used - * as the offset from the end of the collection. - * - * @static - * @memberOf _ - * @alias include - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Mixed} target The value to check for. - * @param {Number} [fromIndex=0] The index to search from. - * @returns {Boolean} Returns `true` if the `target` element is found, else `false`. - * @example - * - * _.contains([1, 2, 3], 1); - * // => true - * - * _.contains([1, 2, 3], 1, 2); - * // => false - * - * _.contains({ 'name': 'moe', 'age': 40 }, 'moe'); - * // => true - * - * _.contains('curly', 'ur'); - * // => true - */ - function contains(collection, target, fromIndex) { - var index = -1, - length = collection ? collection.length : 0; - - fromIndex = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex) || 0; - if (typeof length == 'number') { - return (isString(collection) - ? collection.indexOf(target, fromIndex) - : indexOf(collection, target, fromIndex) - ) > -1; - } - return some(collection, function(value) { - return ++index >= fromIndex && value === target; - }); - } - - /** - * Creates an object composed of keys returned from running each element of - * `collection` through a `callback`. The corresponding value of each key is - * the number of times the key was returned by `callback`. The `callback` is - * bound to `thisArg` and invoked with three arguments; (value, index|key, collection). - * The `callback` argument may also be the name of a property to count by (e.g. 'length'). - * - * @static - * @memberOf _ - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Function|String} callback|property The function called per iteration - * or property name to count by. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * _.countBy([4.3, 6.1, 6.4], function(num) { return Math.floor(num); }); - * // => { '4': 1, '6': 2 } - * - * _.countBy([4.3, 6.1, 6.4], function(num) { return this.floor(num); }, Math); - * // => { '4': 1, '6': 2 } - * - * _.countBy(['one', 'two', 'three'], 'length'); - * // => { '3': 2, '5': 1 } - */ - function countBy(collection, callback, thisArg) { - var result = {}; - callback = createCallback(callback, thisArg); - forEach(collection, function(value, key, collection) { - key = callback(value, key, collection); - (hasOwnProperty.call(result, key) ? result[key]++ : result[key] = 1); - }); - return result; - } - - /** - * Checks if the `callback` returns a truthy value for **all** elements of a - * `collection`. The `callback` is bound to `thisArg` and invoked with three - * arguments; (value, index|key, collection). - * - * @static - * @memberOf _ - * @alias all - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Function} [callback=identity] The function called per iteration. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Boolean} Returns `true` if all elements pass the callback check, - * else `false`. - * @example - * - * _.every([true, 1, null, 'yes'], Boolean); - * // => false - */ - function every(collection, callback, thisArg) { - var result = true; - callback = createCallback(callback, thisArg); - - if (isArray(collection)) { - var index = -1, - length = collection.length; - - while (++index < length) { - if (!(result = !!callback(collection[index], index, collection))) { - break; - } - } - } else { - forEach(collection, function(value, index, collection) { - return (result = !!callback(value, index, collection)); - }); - } - return result; - } - - /** - * Examines each element in a `collection`, returning an array of all elements - * the `callback` returns truthy for. The `callback` is bound to `thisArg` and - * invoked with three arguments; (value, index|key, collection). - * - * @static - * @memberOf _ - * @alias select - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Function} [callback=identity] The function called per iteration. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Array} Returns a new array of elements that passed the callback check. - * @example - * - * var evens = _.filter([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; }); - * // => [2, 4, 6] - */ - function filter(collection, callback, thisArg) { - var result = []; - callback = createCallback(callback, thisArg); - forEach(collection, function(value, index, collection) { - if (callback(value, index, collection)) { - result.push(value); - } - }); - return result; - } - - /** - * Examines each element in a `collection`, returning the first one the `callback` - * returns truthy for. The function returns as soon as it finds an acceptable - * element, and does not iterate over the entire `collection`. The `callback` is - * bound to `thisArg` and invoked with three arguments; (value, index|key, collection). - * - * @static - * @memberOf _ - * @alias detect - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Function} callback The function called per iteration. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Mixed} Returns the element that passed the callback check, - * else `undefined`. - * @example - * - * var even = _.find([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; }); - * // => 2 - */ - function find(collection, callback, thisArg) { - var result; - callback = createCallback(callback, thisArg); - forEach(collection, function(value, index, collection) { - if (callback(value, index, collection)) { - result = value; - return false; - } - }); - return result; - } - - /** - * Iterates over a `collection`, executing the `callback` for each element in - * the `collection`. The `callback` is bound to `thisArg` and invoked with three - * arguments; (value, index|key, collection). Callbacks may exit iteration early - * by explicitly returning `false`. - * - * @static - * @memberOf _ - * @alias each - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Function} callback The function called per iteration. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Array|Object|String} Returns `collection`. - * @example - * - * _([1, 2, 3]).forEach(alert).join(','); - * // => alerts each number and returns '1,2,3' - * - * _.forEach({ 'one': 1, 'two': 2, 'three': 3 }, alert); - * // => alerts each number (order is not guaranteed) - */ - var forEach = createIterator(forEachIteratorOptions); - - /** - * Creates an object composed of keys returned from running each element of - * `collection` through a `callback`. The corresponding value of each key is an - * array of elements passed to `callback` that returned the key. The `callback` - * is bound to `thisArg` and invoked with three arguments; (value, index|key, collection). - * The `callback` argument may also be the name of a property to group by (e.g. 'length'). - * - * @static - * @memberOf _ - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Function|String} callback|property The function called per iteration - * or property name to group by. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * _.groupBy([4.2, 6.1, 6.4], function(num) { return Math.floor(num); }); - * // => { '4': [4.2], '6': [6.1, 6.4] } - * - * _.groupBy([4.2, 6.1, 6.4], function(num) { return this.floor(num); }, Math); - * // => { '4': [4.2], '6': [6.1, 6.4] } - * - * _.groupBy(['one', 'two', 'three'], 'length'); - * // => { '3': ['one', 'two'], '5': ['three'] } - */ - function groupBy(collection, callback, thisArg) { - var result = {}; - callback = createCallback(callback, thisArg); - forEach(collection, function(value, key, collection) { - key = callback(value, key, collection); - (hasOwnProperty.call(result, key) ? result[key] : result[key] = []).push(value); - }); - return result; - } - - /** - * Invokes the method named by `methodName` on each element in the `collection`, - * returning an array of the results of each invoked method. Additional arguments - * will be passed to each invoked method. If `methodName` is a function it will - * be invoked for, and `this` bound to, each element in the `collection`. - * - * @static - * @memberOf _ - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Function|String} methodName The name of the method to invoke or - * the function invoked per iteration. - * @param {Mixed} [arg1, arg2, ...] Arguments to invoke the method with. - * @returns {Array} Returns a new array of the results of each invoked method. - * @example - * - * _.invoke([[5, 1, 7], [3, 2, 1]], 'sort'); - * // => [[1, 5, 7], [1, 2, 3]] - * - * _.invoke([123, 456], String.prototype.split, ''); - * // => [['1', '2', '3'], ['4', '5', '6']] - */ - function invoke(collection, methodName) { - var args = slice.call(arguments, 2), - isFunc = typeof methodName == 'function', - result = []; - - forEach(collection, function(value) { - result.push((isFunc ? methodName : value[methodName]).apply(value, args)); - }); - return result; - } - - /** - * Creates an array of values by running each element in the `collection` - * through a `callback`. The `callback` is bound to `thisArg` and invoked with - * three arguments; (value, index|key, collection). - * - * @static - * @memberOf _ - * @alias collect - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Function} [callback=identity] The function called per iteration. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Array} Returns a new array of the results of each `callback` execution. - * @example - * - * _.map([1, 2, 3], function(num) { return num * 3; }); - * // => [3, 6, 9] - * - * _.map({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { return num * 3; }); - * // => [3, 6, 9] (order is not guaranteed) - */ - function map(collection, callback, thisArg) { - var index = -1, - length = collection ? collection.length : 0, - result = Array(typeof length == 'number' ? length : 0); - - callback = createCallback(callback, thisArg); - if (isArray(collection)) { - while (++index < length) { - result[index] = callback(collection[index], index, collection); - } - } else { - forEach(collection, function(value, key, collection) { - result[++index] = callback(value, key, collection); - }); - } - return result; - } - - /** - * Retrieves the maximum value of an `array`. If `callback` is passed, - * it will be executed for each value in the `array` to generate the - * criterion by which the value is ranked. The `callback` is bound to - * `thisArg` and invoked with three arguments; (value, index, collection). - * - * @static - * @memberOf _ - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Function} [callback] The function called per iteration. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Mixed} Returns the maximum value. - * @example - * - * var stooges = [ - * { 'name': 'moe', 'age': 40 }, - * { 'name': 'larry', 'age': 50 }, - * { 'name': 'curly', 'age': 60 } - * ]; - * - * _.max(stooges, function(stooge) { return stooge.age; }); - * // => { 'name': 'curly', 'age': 60 }; - */ - function max(collection, callback, thisArg) { - var computed = -Infinity, - index = -1, - length = collection ? collection.length : 0, - result = computed; - - if (callback || !isArray(collection)) { - callback = !callback && isString(collection) - ? charAtCallback - : createCallback(callback, thisArg); - - forEach(collection, function(value, index, collection) { - var current = callback(value, index, collection); - if (current > computed) { - computed = current; - result = value; - } - }); - } else { - while (++index < length) { - if (collection[index] > result) { - result = collection[index]; - } - } - } - return result; - } - - /** - * Retrieves the minimum value of an `array`. If `callback` is passed, - * it will be executed for each value in the `array` to generate the - * criterion by which the value is ranked. The `callback` is bound to `thisArg` - * and invoked with three arguments; (value, index, collection). - * - * @static - * @memberOf _ - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Function} [callback] The function called per iteration. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Mixed} Returns the minimum value. - * @example - * - * _.min([10, 5, 100, 2, 1000]); - * // => 2 - */ - function min(collection, callback, thisArg) { - var computed = Infinity, - index = -1, - length = collection ? collection.length : 0, - result = computed; - - if (callback || !isArray(collection)) { - callback = !callback && isString(collection) - ? charAtCallback - : createCallback(callback, thisArg); - - forEach(collection, function(value, index, collection) { - var current = callback(value, index, collection); - if (current < computed) { - computed = current; - result = value; - } - }); - } else { - while (++index < length) { - if (collection[index] < result) { - result = collection[index]; - } - } - } - return result; - } - - /** - * Retrieves the value of a specified property from all elements in - * the `collection`. - * - * @static - * @memberOf _ - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {String} property The property to pluck. - * @returns {Array} Returns a new array of property values. - * @example - * - * var stooges = [ - * { 'name': 'moe', 'age': 40 }, - * { 'name': 'larry', 'age': 50 }, - * { 'name': 'curly', 'age': 60 } - * ]; - * - * _.pluck(stooges, 'name'); - * // => ['moe', 'larry', 'curly'] - */ - function pluck(collection, property) { - var result = []; - forEach(collection, function(value) { - result.push(value[property]); - }); - return result; - } - - /** - * Boils down a `collection` to a single value. The initial state of the - * reduction is `accumulator` and each successive step of it should be returned - * by the `callback`. The `callback` is bound to `thisArg` and invoked with 4 - * arguments; for arrays they are (accumulator, value, index|key, collection). - * - * @static - * @memberOf _ - * @alias foldl, inject - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Function} callback The function called per iteration. - * @param {Mixed} [accumulator] Initial value of the accumulator. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Mixed} Returns the accumulated value. - * @example - * - * var sum = _.reduce([1, 2, 3], function(memo, num) { return memo + num; }); - * // => 6 - */ - function reduce(collection, callback, accumulator, thisArg) { - var noaccum = arguments.length < 3; - callback = createCallback(callback, thisArg); - forEach(collection, function(value, index, collection) { - accumulator = noaccum - ? (noaccum = false, value) - : callback(accumulator, value, index, collection) - }); - return accumulator; - } - - /** - * The right-associative version of `_.reduce`. - * - * @static - * @memberOf _ - * @alias foldr - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Function} callback The function called per iteration. - * @param {Mixed} [accumulator] Initial value of the accumulator. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Mixed} Returns the accumulated value. - * @example - * - * var list = [[0, 1], [2, 3], [4, 5]]; - * var flat = _.reduceRight(list, function(a, b) { return a.concat(b); }, []); - * // => [4, 5, 2, 3, 0, 1] - */ - function reduceRight(collection, callback, accumulator, thisArg) { - var iteratee = collection, - length = collection ? collection.length : 0, - noaccum = arguments.length < 3; - - if (typeof length != 'number') { - var props = keys(collection); - length = props.length; - } else if (noCharByIndex && isString(collection)) { - iteratee = collection.split(''); - } - forEach(collection, function(value, index, collection) { - index = props ? props[--length] : --length; - accumulator = noaccum - ? (noaccum = false, iteratee[index]) - : callback.call(thisArg, accumulator, iteratee[index], index, collection); - }); - return accumulator; - } - - /** - * The opposite of `_.filter`, this method returns the values of a - * `collection` that `callback` does **not** return truthy for. - * - * @static - * @memberOf _ - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Function} [callback=identity] The function called per iteration. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Array} Returns a new array of elements that did **not** pass the - * callback check. - * @example - * - * var odds = _.reject([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; }); - * // => [1, 3, 5] - */ - function reject(collection, callback, thisArg) { - callback = createCallback(callback, thisArg); - return filter(collection, function(value, index, collection) { - return !callback(value, index, collection); - }); - } - - /** - * Creates an array of shuffled `array` values, using a version of the - * Fisher-Yates shuffle. See http://en.wikipedia.org/wiki/Fisher-Yates_shuffle. - * - * @static - * @memberOf _ - * @category Collections - * @param {Array|Object|String} collection The collection to shuffle. - * @returns {Array} Returns a new shuffled collection. - * @example - * - * _.shuffle([1, 2, 3, 4, 5, 6]); - * // => [4, 1, 6, 3, 5, 2] - */ - function shuffle(collection) { - var index = -1, - result = Array(collection ? collection.length : 0); - - forEach(collection, function(value) { - var rand = floor(nativeRandom() * (++index + 1)); - result[index] = result[rand]; - result[rand] = value; - }); - return result; - } - - /** - * Gets the size of the `collection` by returning `collection.length` for arrays - * and array-like objects or the number of own enumerable properties for objects. - * - * @static - * @memberOf _ - * @category Collections - * @param {Array|Object|String} collection The collection to inspect. - * @returns {Number} Returns `collection.length` or number of own enumerable properties. - * @example - * - * _.size([1, 2]); - * // => 2 - * - * _.size({ 'one': 1, 'two': 2, 'three': 3 }); - * // => 3 - * - * _.size('curly'); - * // => 5 - */ - function size(collection) { - var length = collection ? collection.length : 0; - return typeof length == 'number' ? length : keys(collection).length; - } - - /** - * Checks if the `callback` returns a truthy value for **any** element of a - * `collection`. The function returns as soon as it finds passing value, and - * does not iterate over the entire `collection`. The `callback` is bound to - * `thisArg` and invoked with three arguments; (value, index|key, collection). - * - * @static - * @memberOf _ - * @alias any - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Function} [callback=identity] The function called per iteration. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Boolean} Returns `true` if any element passes the callback check, - * else `false`. - * @example - * - * _.some([null, 0, 'yes', false]); - * // => true - */ - function some(collection, callback, thisArg) { - var result; - callback = createCallback(callback, thisArg); - - if (isArray(collection)) { - var index = -1, - length = collection.length; - - while (++index < length) { - if (result = callback(collection[index], index, collection)) { - break; - } - } - } else { - forEach(collection, function(value, index, collection) { - return !(result = callback(value, index, collection)); - }); - } - return !!result; - } - - /** - * Creates an array, stable sorted in ascending order by the results of - * running each element of `collection` through a `callback`. The `callback` - * is bound to `thisArg` and invoked with three arguments; (value, index|key, collection). - * The `callback` argument may also be the name of a property to sort by (e.g. 'length'). - * - * @static - * @memberOf _ - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Function|String} callback|property The function called per iteration - * or property name to sort by. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Array} Returns a new array of sorted elements. - * @example - * - * _.sortBy([1, 2, 3], function(num) { return Math.sin(num); }); - * // => [3, 1, 2] - * - * _.sortBy([1, 2, 3], function(num) { return this.sin(num); }, Math); - * // => [3, 1, 2] - * - * _.sortBy(['larry', 'brendan', 'moe'], 'length'); - * // => ['moe', 'larry', 'brendan'] - */ - function sortBy(collection, callback, thisArg) { - var result = []; - callback = createCallback(callback, thisArg); - forEach(collection, function(value, index, collection) { - result.push({ - 'criteria': callback(value, index, collection), - 'index': index, - 'value': value - }); - }); - - var length = result.length; - result.sort(compareAscending); - while (length--) { - result[length] = result[length].value; - } - return result; - } - - /** - * Converts the `collection`, to an array. - * - * @static - * @memberOf _ - * @category Collections - * @param {Array|Object|String} collection The collection to convert. - * @returns {Array} Returns the new converted array. - * @example - * - * (function() { return _.toArray(arguments).slice(1); })(1, 2, 3, 4); - * // => [2, 3, 4] - */ - function toArray(collection) { - if (collection && typeof collection.length == 'number') { - return (noArraySliceOnStrings ? isString(collection) : typeof collection == 'string') - ? collection.split('') - : slice.call(collection); - } - return values(collection); - } - - /** - * Examines each element in a `collection`, returning an array of all elements - * that contain the given `properties`. - * - * @static - * @memberOf _ - * @category Collections - * @param {Array|Object|String} collection The collection to iterate over. - * @param {Object} properties The object of property values to filter by. - * @returns {Array} Returns a new array of elements that contain the given `properties`. - * @example - * - * var stooges = [ - * { 'name': 'moe', 'age': 40 }, - * { 'name': 'larry', 'age': 50 }, - * { 'name': 'curly', 'age': 60 } - * ]; - * - * _.where(stooges, { 'age': 40 }); - * // => [{ 'name': 'moe', 'age': 40 }] - */ - function where(collection, properties) { - var props = []; - forIn(properties, function(value, prop) { - props.push(prop); - }); - return filter(collection, function(object) { - var length = props.length; - while (length--) { - var result = object[props[length]] === properties[props[length]]; - if (!result) { - break; - } - } - return !!result; - }); - } - - /*--------------------------------------------------------------------------*/ - - /** - * Creates an array with all falsey values of `array` removed. The values - * `false`, `null`, `0`, `""`, `undefined` and `NaN` are all falsey. - * - * @static - * @memberOf _ - * @category Arrays - * @param {Array} array The array to compact. - * @returns {Array} Returns a new filtered array. - * @example - * - * _.compact([0, 1, false, 2, '', 3]); - * // => [1, 2, 3] - */ - function compact(array) { - var index = -1, - length = array ? array.length : 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value) { - result.push(value); - } - } - return result; - } - - /** - * Creates an array of `array` elements not present in the other arrays - * using strict equality for comparisons, i.e. `===`. - * - * @static - * @memberOf _ - * @category Arrays - * @param {Array} array The array to process. - * @param {Array} [array1, array2, ...] Arrays to check. - * @returns {Array} Returns a new array of `array` elements not present in the - * other arrays. - * @example - * - * _.difference([1, 2, 3, 4, 5], [5, 2, 10]); - * // => [1, 3, 4] - */ - function difference(array) { - var index = -1, - length = array ? array.length : 0, - flattened = concat.apply(arrayRef, arguments), - contains = cachedContains(flattened, length), - result = []; - - while (++index < length) { - var value = array[index]; - if (!contains(value)) { - result.push(value); - } - } - return result; - } - - /** - * Gets the first element of the `array`. Pass `n` to return the first `n` - * elements of the `array`. - * - * @static - * @memberOf _ - * @alias head, take - * @category Arrays - * @param {Array} array The array to query. - * @param {Number} [n] The number of elements to return. - * @param- {Object} [guard] Internally used to allow this method to work with - * others like `_.map` without using their callback `index` argument for `n`. - * @returns {Mixed} Returns the first element or an array of the first `n` - * elements of `array`. - * @example - * - * _.first([5, 4, 3, 2, 1]); - * // => 5 - */ - function first(array, n, guard) { - if (array) { - return (n == null || guard) ? array[0] : slice.call(array, 0, n); - } - } - - /** - * Flattens a nested array (the nesting can be to any depth). If `shallow` is - * truthy, `array` will only be flattened a single level. - * - * @static - * @memberOf _ - * @category Arrays - * @param {Array} array The array to compact. - * @param {Boolean} shallow A flag to indicate only flattening a single level. - * @returns {Array} Returns a new flattened array. - * @example - * - * _.flatten([1, [2], [3, [[4]]]]); - * // => [1, 2, 3, 4]; - * - * _.flatten([1, [2], [3, [[4]]]], true); - * // => [1, 2, 3, [[4]]]; - */ - function flatten(array, shallow) { - var index = -1, - length = array ? array.length : 0, - result = []; - - while (++index < length) { - var value = array[index]; - - // recursively flatten arrays (susceptible to call stack limits) - if (isArray(value)) { - push.apply(result, shallow ? value : flatten(value)); - } else { - result.push(value); - } - } - return result; - } - - /** - * Gets the index at which the first occurrence of `value` is found using - * strict equality for comparisons, i.e. `===`. If the `array` is already - * sorted, passing `true` for `fromIndex` will run a faster binary search. - * - * @static - * @memberOf _ - * @category Arrays - * @param {Array} array The array to search. - * @param {Mixed} value The value to search for. - * @param {Boolean|Number} [fromIndex=0] The index to search from or `true` to - * perform a binary search on a sorted `array`. - * @returns {Number} Returns the index of the matched value or `-1`. - * @example - * - * _.indexOf([1, 2, 3, 1, 2, 3], 2); - * // => 1 - * - * _.indexOf([1, 2, 3, 1, 2, 3], 2, 3); - * // => 4 - * - * _.indexOf([1, 1, 2, 2, 3, 3], 2, true); - * // => 2 - */ - function indexOf(array, value, fromIndex) { - var index = -1, - length = array ? array.length : 0; - - if (typeof fromIndex == 'number') { - index = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex || 0) - 1; - } else if (fromIndex) { - index = sortedIndex(array, value); - return array[index] === value ? index : -1; - } - while (++index < length) { - if (array[index] === value) { - return index; - } - } - return -1; - } - - /** - * Gets all but the last element of `array`. Pass `n` to exclude the last `n` - * elements from the result. - * - * @static - * @memberOf _ - * @category Arrays - * @param {Array} array The array to query. - * @param {Number} [n=1] The number of elements to exclude. - * @param- {Object} [guard] Internally used to allow this method to work with - * others like `_.map` without using their callback `index` argument for `n`. - * @returns {Array} Returns all but the last element or `n` elements of `array`. - * @example - * - * _.initial([3, 2, 1]); - * // => [3, 2] - */ - function initial(array, n, guard) { - return array - ? slice.call(array, 0, -((n == null || guard) ? 1 : n)) - : []; - } - - /** - * Computes the intersection of all the passed-in arrays using strict equality - * for comparisons, i.e. `===`. - * - * @static - * @memberOf _ - * @category Arrays - * @param {Array} [array1, array2, ...] Arrays to process. - * @returns {Array} Returns a new array of unique elements, in order, that are - * present in **all** of the arrays. - * @example - * - * _.intersection([1, 2, 3], [101, 2, 1, 10], [2, 1]); - * // => [1, 2] - */ - function intersection(array) { - var args = arguments, - argsLength = args.length, - cache = {}, - result = []; - - forEach(array, function(value) { - if (indexOf(result, value) < 0) { - var length = argsLength; - while (--length) { - if (!(cache[length] || (cache[length] = cachedContains(args[length])))(value)) { - return; - } - } - result.push(value); - } - }); - return result; - } - - /** - * Gets the last element of the `array`. Pass `n` to return the last `n` - * elements of the `array`. - * - * @static - * @memberOf _ - * @category Arrays - * @param {Array} array The array to query. - * @param {Number} [n] The number of elements to return. - * @param- {Object} [guard] Internally used to allow this method to work with - * others like `_.map` without using their callback `index` argument for `n`. - * @returns {Mixed} Returns the last element or an array of the last `n` - * elements of `array`. - * @example - * - * _.last([3, 2, 1]); - * // => 1 - */ - function last(array, n, guard) { - if (array) { - var length = array.length; - return (n == null || guard) ? array[length - 1] : slice.call(array, -n || length); - } - } - - /** - * Gets the index at which the last occurrence of `value` is found using strict - * equality for comparisons, i.e. `===`. If `fromIndex` is negative, it is used - * as the offset from the end of the collection. - * - * @static - * @memberOf _ - * @category Arrays - * @param {Array} array The array to search. - * @param {Mixed} value The value to search for. - * @param {Number} [fromIndex=array.length-1] The index to search from. - * @returns {Number} Returns the index of the matched value or `-1`. - * @example - * - * _.lastIndexOf([1, 2, 3, 1, 2, 3], 2); - * // => 4 - * - * _.lastIndexOf([1, 2, 3, 1, 2, 3], 2, 3); - * // => 1 - */ - function lastIndexOf(array, value, fromIndex) { - var index = array ? array.length : 0; - if (typeof fromIndex == 'number') { - index = (fromIndex < 0 ? nativeMax(0, index + fromIndex) : nativeMin(fromIndex, index - 1)) + 1; - } - while (index--) { - if (array[index] === value) { - return index; - } - } - return -1; - } - - /** - * Creates an object composed from arrays of `keys` and `values`. Pass either - * a single two dimensional array, i.e. `[[key1, value1], [key2, value2]]`, or - * two arrays, one of `keys` and one of corresponding `values`. - * - * @static - * @memberOf _ - * @category Arrays - * @param {Array} keys The array of keys. - * @param {Array} [values=[]] The array of values. - * @returns {Object} Returns an object composed of the given keys and - * corresponding values. - * @example - * - * _.object(['moe', 'larry', 'curly'], [30, 40, 50]); - * // => { 'moe': 30, 'larry': 40, 'curly': 50 } - */ - function object(keys, values) { - var index = -1, - length = keys ? keys.length : 0, - result = {}; - - while (++index < length) { - var key = keys[index]; - if (values) { - result[key] = values[index]; - } else { - result[key[0]] = key[1]; - } - } - return result; - } - - /** - * Creates an array of numbers (positive and/or negative) progressing from - * `start` up to but not including `stop`. This method is a port of Python's - * `range()` function. See http://docs.python.org/library/functions.html#range. - * - * @static - * @memberOf _ - * @category Arrays - * @param {Number} [start=0] The start of the range. - * @param {Number} end The end of the range. - * @param {Number} [step=1] The value to increment or descrement by. - * @returns {Array} Returns a new range array. - * @example - * - * _.range(10); - * // => [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] - * - * _.range(1, 11); - * // => [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] - * - * _.range(0, 30, 5); - * // => [0, 5, 10, 15, 20, 25] - * - * _.range(0, -10, -1); - * // => [0, -1, -2, -3, -4, -5, -6, -7, -8, -9] - * - * _.range(0); - * // => [] - */ - function range(start, end, step) { - start = +start || 0; - step = +step || 1; - - if (end == null) { - end = start; - start = 0; - } - // use `Array(length)` so V8 will avoid the slower "dictionary" mode - // http://www.youtube.com/watch?v=XAqIpGU8ZZk#t=16m27s - var index = -1, - length = nativeMax(0, ceil((end - start) / step)), - result = Array(length); - - while (++index < length) { - result[index] = start; - start += step; - } - return result; - } - - /** - * The opposite of `_.initial`, this method gets all but the first value of - * `array`. Pass `n` to exclude the first `n` values from the result. - * - * @static - * @memberOf _ - * @alias drop, tail - * @category Arrays - * @param {Array} array The array to query. - * @param {Number} [n=1] The number of elements to exclude. - * @param- {Object} [guard] Internally used to allow this method to work with - * others like `_.map` without using their callback `index` argument for `n`. - * @returns {Array} Returns all but the first value or `n` values of `array`. - * @example - * - * _.rest([3, 2, 1]); - * // => [2, 1] - */ - function rest(array, n, guard) { - return array - ? slice.call(array, (n == null || guard) ? 1 : n) - : []; - } - - /** - * Uses a binary search to determine the smallest index at which the `value` - * should be inserted into `array` in order to maintain the sort order of the - * sorted `array`. If `callback` is passed, it will be executed for `value` and - * each element in `array` to compute their sort ranking. The `callback` is - * bound to `thisArg` and invoked with one argument; (value). The `callback` - * argument may also be the name of a property to order by. - * - * @static - * @memberOf _ - * @category Arrays - * @param {Array} array The array to iterate over. - * @param {Mixed} value The value to evaluate. - * @param {Function|String} [callback=identity|property] The function called - * per iteration or property name to order by. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Number} Returns the index at which the value should be inserted - * into `array`. - * @example - * - * _.sortedIndex([20, 30, 50], 40); - * // => 2 - * - * _.sortedIndex([{ 'x': 20 }, { 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x'); - * // => 2 - * - * var dict = { - * 'wordToNumber': { 'twenty': 20, 'thirty': 30, 'fourty': 40, 'fifty': 50 } - * }; - * - * _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) { - * return dict.wordToNumber[word]; - * }); - * // => 2 - * - * _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) { - * return this.wordToNumber[word]; - * }, dict); - * // => 2 - */ - function sortedIndex(array, value, callback, thisArg) { - var low = 0, - high = array ? array.length : low; - - // explicitly reference `identity` for better engine inlining - callback = callback ? createCallback(callback, thisArg) : identity; - value = callback(value); - while (low < high) { - var mid = (low + high) >>> 1; - callback(array[mid]) < value - ? low = mid + 1 - : high = mid; - } - return low; - } - - /** - * Computes the union of the passed-in arrays using strict equality for - * comparisons, i.e. `===`. - * - * @static - * @memberOf _ - * @category Arrays - * @param {Array} [array1, array2, ...] Arrays to process. - * @returns {Array} Returns a new array of unique values, in order, that are - * present in one or more of the arrays. - * @example - * - * _.union([1, 2, 3], [101, 2, 1, 10], [2, 1]); - * // => [1, 2, 3, 101, 10] - */ - function union() { - return uniq(concat.apply(arrayRef, arguments)); - } - - /** - * Creates a duplicate-value-free version of the `array` using strict equality - * for comparisons, i.e. `===`. If the `array` is already sorted, passing `true` - * for `isSorted` will run a faster algorithm. If `callback` is passed, each - * element of `array` is passed through a callback` before uniqueness is computed. - * The `callback` is bound to `thisArg` and invoked with three arguments; (value, index, array). - * - * @static - * @memberOf _ - * @alias unique - * @category Arrays - * @param {Array} array The array to process. - * @param {Boolean} [isSorted=false] A flag to indicate that the `array` is already sorted. - * @param {Function} [callback=identity] The function called per iteration. - * @param {Mixed} [thisArg] The `this` binding of `callback`. - * @returns {Array} Returns a duplicate-value-free array. - * @example - * - * _.uniq([1, 2, 1, 3, 1]); - * // => [1, 2, 3] - * - * _.uniq([1, 1, 2, 2, 3], true); - * // => [1, 2, 3] - * - * _.uniq([1, 2, 1.5, 3, 2.5], function(num) { return Math.floor(num); }); - * // => [1, 2, 3] - * - * _.uniq([1, 2, 1.5, 3, 2.5], function(num) { return this.floor(num); }, Math); - * // => [1, 2, 3] - */ - function uniq(array, isSorted, callback, thisArg) { - var index = -1, - length = array ? array.length : 0, - result = [], - seen = result; - - // juggle arguments - if (typeof isSorted == 'function') { - thisArg = callback; - callback = isSorted; - isSorted = false; - } - // init value cache for large arrays - var isLarge = !isSorted && length > 74; - if (isLarge) { - var cache = {}; - } - if (callback) { - seen = []; - callback = createCallback(callback, thisArg); - } - while (++index < length) { - var value = array[index], - computed = callback ? callback(value, index, array) : value; - - if (isLarge) { - // manually coerce `computed` to a string because `hasOwnProperty`, in - // some older versions of Firefox, coerces objects incorrectly - seen = hasOwnProperty.call(cache, computed + '') ? cache[computed] : (cache[computed] = []); - } - if (isSorted - ? !index || seen[seen.length - 1] !== computed - : indexOf(seen, computed) < 0 - ) { - if (callback || isLarge) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * Creates an array with all occurrences of the passed values removed using - * strict equality for comparisons, i.e. `===`. - * - * @static - * @memberOf _ - * @category Arrays - * @param {Array} array The array to filter. - * @param {Mixed} [value1, value2, ...] Values to remove. - * @returns {Array} Returns a new filtered array. - * @example - * - * _.without([1, 2, 1, 0, 3, 1, 4], 0, 1); - * // => [2, 3, 4] - */ - function without(array) { - var index = -1, - length = array ? array.length : 0, - contains = cachedContains(arguments, 1, 20), - result = []; - - while (++index < length) { - var value = array[index]; - if (!contains(value)) { - result.push(value); - } - } - return result; - } - - /** - * Groups the elements of each array at their corresponding indexes. Useful for - * separate data sources that are coordinated through matching array indexes. - * For a matrix of nested arrays, `_.zip.apply(...)` can transpose the matrix - * in a similar fashion. - * - * @static - * @memberOf _ - * @category Arrays - * @param {Array} [array1, array2, ...] Arrays to process. - * @returns {Array} Returns a new array of grouped elements. - * @example - * - * _.zip(['moe', 'larry', 'curly'], [30, 40, 50], [true, false, false]); - * // => [['moe', 30, true], ['larry', 40, false], ['curly', 50, false]] - */ - function zip(array) { - var index = -1, - length = array ? max(pluck(arguments, 'length')) : 0, - result = Array(length); - - while (++index < length) { - result[index] = pluck(arguments, index); - } - return result; - } - - /*--------------------------------------------------------------------------*/ - - /** - * Creates a function that is restricted to executing `func` only after it is - * called `n` times. The `func` is executed with the `this` binding of the - * created function. - * - * @static - * @memberOf _ - * @category Functions - * @param {Number} n The number of times the function must be called before - * it is executed. - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * var renderNotes = _.after(notes.length, render); - * _.forEach(notes, function(note) { - * note.asyncSave({ 'success': renderNotes }); - * }); - * // `renderNotes` is run once, after all notes have saved - */ - function after(n, func) { - if (n < 1) { - return func(); - } - return function() { - if (--n < 1) { - return func.apply(this, arguments); - } - }; - } - - /** - * Creates a function that, when called, invokes `func` with the `this` - * binding of `thisArg` and prepends any additional `bind` arguments to those - * passed to the bound function. - * - * @static - * @memberOf _ - * @category Functions - * @param {Function} func The function to bind. - * @param {Mixed} [thisArg] The `this` binding of `func`. - * @param {Mixed} [arg1, arg2, ...] Arguments to be partially applied. - * @returns {Function} Returns the new bound function. - * @example - * - * var func = function(greeting) { - * return greeting + ' ' + this.name; - * }; - * - * func = _.bind(func, { 'name': 'moe' }, 'hi'); - * func(); - * // => 'hi moe' - */ - function bind(func, thisArg) { - // use `Function#bind` if it exists and is fast - // (in V8 `Function#bind` is slower except when partially applied) - return isBindFast || (nativeBind && arguments.length > 2) - ? nativeBind.call.apply(nativeBind, arguments) - : createBound(func, thisArg, slice.call(arguments, 2)); - } - - /** - * Binds methods on `object` to `object`, overwriting the existing method. - * If no method names are provided, all the function properties of `object` - * will be bound. - * - * @static - * @memberOf _ - * @category Functions - * @param {Object} object The object to bind and assign the bound methods to. - * @param {String} [methodName1, methodName2, ...] Method names on the object to bind. - * @returns {Object} Returns `object`. - * @example - * - * var buttonView = { - * 'label': 'lodash', - * 'onClick': function() { alert('clicked: ' + this.label); } - * }; - * - * _.bindAll(buttonView); - * jQuery('#lodash_button').on('click', buttonView.onClick); - * // => When the button is clicked, `this.label` will have the correct value - */ - function bindAll(object) { - var funcs = arguments, - index = funcs.length > 1 ? 0 : (funcs = functions(object), -1), - length = funcs.length; - - while (++index < length) { - var key = funcs[index]; - object[key] = bind(object[key], object); - } - return object; - } - - /** - * Creates a function that is the composition of the passed functions, - * where each function consumes the return value of the function that follows. - * In math terms, composing the functions `f()`, `g()`, and `h()` produces `f(g(h()))`. - * Each function is executed with the `this` binding of the composed function. - * - * @static - * @memberOf _ - * @category Functions - * @param {Function} [func1, func2, ...] Functions to compose. - * @returns {Function} Returns the new composed function. - * @example - * - * var greet = function(name) { return 'hi: ' + name; }; - * var exclaim = function(statement) { return statement + '!'; }; - * var welcome = _.compose(exclaim, greet); - * welcome('moe'); - * // => 'hi: moe!' - */ - function compose() { - var funcs = arguments; - return function() { - var args = arguments, - length = funcs.length; - - while (length--) { - args = [funcs[length].apply(this, args)]; - } - return args[0]; - }; - } - - /** - * Creates a function that will delay the execution of `func` until after - * `wait` milliseconds have elapsed since the last time it was invoked. Pass - * `true` for `immediate` to cause debounce to invoke `func` on the leading, - * instead of the trailing, edge of the `wait` timeout. Subsequent calls to - * the debounced function will return the result of the last `func` call. - * - * @static - * @memberOf _ - * @category Functions - * @param {Function} func The function to debounce. - * @param {Number} wait The number of milliseconds to delay. - * @param {Boolean} immediate A flag to indicate execution is on the leading - * edge of the timeout. - * @returns {Function} Returns the new debounced function. - * @example - * - * var lazyLayout = _.debounce(calculateLayout, 300); - * jQuery(window).on('resize', lazyLayout); - */ - function debounce(func, wait, immediate) { - var args, - result, - thisArg, - timeoutId; - - function delayed() { - timeoutId = null; - if (!immediate) { - result = func.apply(thisArg, args); - } - } - return function() { - var isImmediate = immediate && !timeoutId; - args = arguments; - thisArg = this; - - clearTimeout(timeoutId); - timeoutId = setTimeout(delayed, wait); - - if (isImmediate) { - result = func.apply(thisArg, args); - } - return result; - }; - } - - /** - * Executes the `func` function after `wait` milliseconds. Additional arguments - * will be passed to `func` when it is invoked. - * - * @static - * @memberOf _ - * @category Functions - * @param {Function} func The function to delay. - * @param {Number} wait The number of milliseconds to delay execution. - * @param {Mixed} [arg1, arg2, ...] Arguments to invoke the function with. - * @returns {Number} Returns the `setTimeout` timeout id. - * @example - * - * var log = _.bind(console.log, console); - * _.delay(log, 1000, 'logged later'); - * // => 'logged later' (Appears after one second.) - */ - function delay(func, wait) { - var args = slice.call(arguments, 2); - return setTimeout(function() { func.apply(undefined, args); }, wait); - } - - /** - * Defers executing the `func` function until the current call stack has cleared. - * Additional arguments will be passed to `func` when it is invoked. - * - * @static - * @memberOf _ - * @category Functions - * @param {Function} func The function to defer. - * @param {Mixed} [arg1, arg2, ...] Arguments to invoke the function with. - * @returns {Number} Returns the `setTimeout` timeout id. - * @example - * - * _.defer(function() { alert('deferred'); }); - * // returns from the function before `alert` is called - */ - function defer(func) { - var args = slice.call(arguments, 1); - return setTimeout(function() { func.apply(undefined, args); }, 1); - } - - /** - * Creates a function that, when called, invokes `object[methodName]` and - * prepends any additional `lateBind` arguments to those passed to the bound - * function. This method differs from `_.bind` by allowing bound functions to - * reference methods that will be redefined or don't yet exist. - * - * @static - * @memberOf _ - * @category Functions - * @param {Object} object The object the method belongs to. - * @param {String} methodName The method name. - * @param {Mixed} [arg1, arg2, ...] Arguments to be partially applied. - * @returns {Function} Returns the new bound function. - * @example - * - * var object = { - * 'name': 'moe', - * 'greet': function(greeting) { - * return greeting + ' ' + this.name; - * } - * }; - * - * var func = _.lateBind(object, 'greet', 'hi'); - * func(); - * // => 'hi moe' - * - * object.greet = function(greeting) { - * return greeting + ', ' + this.name + '!'; - * }; - * - * func(); - * // => 'hi, moe!' - */ - function lateBind(object, methodName) { - return createBound(methodName, object, slice.call(arguments, 2)); - } - - /** - * Creates a function that memoizes the result of `func`. If `resolver` is - * passed, it will be used to determine the cache key for storing the result - * based on the arguments passed to the memoized function. By default, the first - * argument passed to the memoized function is used as the cache key. The `func` - * is executed with the `this` binding of the memoized function. - * - * @static - * @memberOf _ - * @category Functions - * @param {Function} func The function to have its output memoized. - * @param {Function} [resolver] A function used to resolve the cache key. - * @returns {Function} Returns the new memoizing function. - * @example - * - * var fibonacci = _.memoize(function(n) { - * return n < 2 ? n : fibonacci(n - 1) + fibonacci(n - 2); - * }); - */ - function memoize(func, resolver) { - var cache = {}; - return function() { - var key = resolver ? resolver.apply(this, arguments) : arguments[0]; - return hasOwnProperty.call(cache, key) - ? cache[key] - : (cache[key] = func.apply(this, arguments)); - }; - } - - /** - * Creates a function that is restricted to execute `func` once. Repeat calls to - * the function will return the value of the first call. The `func` is executed - * with the `this` binding of the created function. - * - * @static - * @memberOf _ - * @category Functions - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * var initialize = _.once(createApplication); - * initialize(); - * initialize(); - * // Application is only created once. - */ - function once(func) { - var result, - ran = false; - - return function() { - if (ran) { - return result; - } - ran = true; - result = func.apply(this, arguments); - - // clear the `func` variable so the function may be garbage collected - func = null; - return result; - }; - } - - /** - * Creates a function that, when called, invokes `func` with any additional - * `partial` arguments prepended to those passed to the new function. This - * method is similar to `bind`, except it does **not** alter the `this` binding. - * - * @static - * @memberOf _ - * @category Functions - * @param {Function} func The function to partially apply arguments to. - * @param {Mixed} [arg1, arg2, ...] Arguments to be partially applied. - * @returns {Function} Returns the new partially applied function. - * @example - * - * var greet = function(greeting, name) { return greeting + ': ' + name; }; - * var hi = _.partial(greet, 'hi'); - * hi('moe'); - * // => 'hi: moe' - */ - function partial(func) { - return createBound(func, slice.call(arguments, 1)); - } - - /** - * Creates a function that, when executed, will only call the `func` - * function at most once per every `wait` milliseconds. If the throttled - * function is invoked more than once during the `wait` timeout, `func` will - * also be called on the trailing edge of the timeout. Subsequent calls to the - * throttled function will return the result of the last `func` call. - * - * @static - * @memberOf _ - * @category Functions - * @param {Function} func The function to throttle. - * @param {Number} wait The number of milliseconds to throttle executions to. - * @returns {Function} Returns the new throttled function. - * @example - * - * var throttled = _.throttle(updatePosition, 100); - * jQuery(window).on('scroll', throttled); - */ - function throttle(func, wait) { - var args, - result, - thisArg, - timeoutId, - lastCalled = 0; - - function trailingCall() { - lastCalled = new Date; - timeoutId = null; - result = func.apply(thisArg, args); - } - return function() { - var now = new Date, - remaining = wait - (now - lastCalled); - - args = arguments; - thisArg = this; - - if (remaining <= 0) { - clearTimeout(timeoutId); - lastCalled = now; - result = func.apply(thisArg, args); - } - else if (!timeoutId) { - timeoutId = setTimeout(trailingCall, remaining); - } - return result; - }; - } - - /** - * Creates a function that passes `value` to the `wrapper` function as its - * first argument. Additional arguments passed to the function are appended - * to those passed to the `wrapper` function. The `wrapper` is executed with - * the `this` binding of the created function. - * - * @static - * @memberOf _ - * @category Functions - * @param {Mixed} value The value to wrap. - * @param {Function} wrapper The wrapper function. - * @returns {Function} Returns the new function. - * @example - * - * var hello = function(name) { return 'hello ' + name; }; - * hello = _.wrap(hello, function(func) { - * return 'before, ' + func('moe') + ', after'; - * }); - * hello(); - * // => 'before, hello moe, after' - */ - function wrap(value, wrapper) { - return function() { - var args = [value]; - push.apply(args, arguments); - return wrapper.apply(this, args); - }; - } - - /*--------------------------------------------------------------------------*/ - - /** - * Converts the characters `&`, `<`, `>`, `"`, and `'` in `string` to their - * corresponding HTML entities. - * - * @static - * @memberOf _ - * @category Utilities - * @param {String} string The string to escape. - * @returns {String} Returns the escaped string. - * @example - * - * _.escape('Moe, Larry & Curly'); - * // => "Moe, Larry & Curly" - */ - function escape(string) { - return string == null ? '' : (string + '').replace(reUnescapedHtml, escapeHtmlChar); - } - - /** - * This function returns the first argument passed to it. - * - * Note: It is used throughout Lo-Dash as a default callback. - * - * @static - * @memberOf _ - * @category Utilities - * @param {Mixed} value Any value. - * @returns {Mixed} Returns `value`. - * @example - * - * var moe = { 'name': 'moe' }; - * moe === _.identity(moe); - * // => true - */ - function identity(value) { - return value; - } - - /** - * Adds functions properties of `object` to the `lodash` function and chainable - * wrapper. - * - * @static - * @memberOf _ - * @category Utilities - * @param {Object} object The object of function properties to add to `lodash`. - * @example - * - * _.mixin({ - * 'capitalize': function(string) { - * return string.charAt(0).toUpperCase() + string.slice(1).toLowerCase(); - * } - * }); - * - * _.capitalize('larry'); - * // => 'Larry' - * - * _('curly').capitalize(); - * // => 'Curly' - */ - function mixin(object) { - forEach(functions(object), function(methodName) { - var func = lodash[methodName] = object[methodName]; - - lodash.prototype[methodName] = function() { - var args = [this.__wrapped__]; - push.apply(args, arguments); - - var result = func.apply(lodash, args); - if (this.__chain__) { - result = new lodash(result); - result.__chain__ = true; - } - return result; - }; - }); - } - - /** - * Reverts the '_' variable to its previous value and returns a reference to - * the `lodash` function. - * - * @static - * @memberOf _ - * @category Utilities - * @returns {Function} Returns the `lodash` function. - * @example - * - * var lodash = _.noConflict(); - */ - function noConflict() { - window._ = oldDash; - return this; - } - - /** - * Produces a random number between `min` and `max` (inclusive). If only one - * argument is passed, a number between `0` and the given number will be returned. - * - * @static - * @memberOf _ - * @category Utilities - * @param {Number} [min=0] The minimum possible value. - * @param {Number} [max=1] The maximum possible value. - * @returns {Number} Returns a random number. - * @example - * - * _.random(0, 5); - * // => a number between 1 and 5 - * - * _.random(5); - * // => also a number between 1 and 5 - */ - function random(min, max) { - if (min == null && max == null) { - max = 1; - } - min = +min || 0; - if (max == null) { - max = min; - min = 0; - } - return min + floor(nativeRandom() * ((+max || 0) - min + 1)); - } - - /** - * Resolves the value of `property` on `object`. If `property` is a function - * it will be invoked and its result returned, else the property value is - * returned. If `object` is falsey, then `null` is returned. - * - * @deprecated - * @static - * @memberOf _ - * @category Utilities - * @param {Object} object The object to inspect. - * @param {String} property The property to get the value of. - * @returns {Mixed} Returns the resolved value. - * @example - * - * var object = { - * 'cheese': 'crumpets', - * 'stuff': function() { - * return 'nonsense'; - * } - * }; - * - * _.result(object, 'cheese'); - * // => 'crumpets' - * - * _.result(object, 'stuff'); - * // => 'nonsense' - */ - function result(object, property) { - // based on Backbone's private `getValue` function - // https://github.com/documentcloud/backbone/blob/0.9.2/backbone.js#L1419-1424 - var value = object ? object[property] : null; - return isFunction(value) ? object[property]() : value; - } - - /** - * A micro-templating method that handles arbitrary delimiters, preserves - * whitespace, and correctly escapes quotes within interpolated code. - * - * Note: In the development build `_.template` utilizes sourceURLs for easier - * debugging. See http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl - * - * Note: Lo-Dash may be used in Chrome extensions by either creating a `lodash csp` - * build and avoiding `_.template` use, or loading Lo-Dash in a sandboxed page. - * See http://developer.chrome.com/trunk/extensions/sandboxingEval.html - * - * @static - * @memberOf _ - * @category Utilities - * @param {String} text The template text. - * @param {Obect} data The data object used to populate the text. - * @param {Object} options The options object. - * escape - The "escape" delimiter regexp. - * evaluate - The "evaluate" delimiter regexp. - * interpolate - The "interpolate" delimiter regexp. - * sourceURL - The sourceURL of the template's compiled source. - * variable - The data object variable name. - * - * @returns {Function|String} Returns a compiled function when no `data` object - * is given, else it returns the interpolated text. - * @example - * - * // using a compiled template - * var compiled = _.template('hello <%= name %>'); - * compiled({ 'name': 'moe' }); - * // => 'hello moe' - * - * var list = '<% _.forEach(people, function(name) { %>
  • <%= name %>
    • <% }); %>'; - * _.template(list, { 'people': ['moe', 'larry', 'curly'] }); - * // => '
  • moe
  • larry
  • curly
    • ' - * - * // using the "escape" delimiter to escape HTML in data property values - * _.template('<%- value %>', { 'value': '