* yuicompressor 需配置java 环境
* type为文件类型
* o 为输出文件
* 可保存为批处理文件a.bat
* 下载地址: http://yui.github.io/yuicompressor/
* java -jar "yuicompressor.jar" --charset utf-8 --type css css.css -o css-min.css
- css文字溢出 ...
{ overflow: hidden; text-overflow: ellipsis; white-space:nowrap; word-break:keep-all; } - ie 6 7 在使用滤镜后 文字不清晰, 添加背景颜色可以解决
- IE6 下图片缩小失真bug 变得很模糊 出现锯齿
- 一、处理符合大小的图片
- 二、引入命名空间
<html xmlns:v="urn:schemas-microsoft-com:vml"> <style type="text/css"> v\:image{ behavior: url(#default#VML); width:900px;height:200px;} </style> <v:image src="1.jpg"/> <style> _img{ max-width:600px; height:auto; zoom:expression( function(elm) { if (elm.width>600) { var oldVW = elm.width; elm.width=600; elm.height = elm.height*(600 /oldVW); } elm.style.zoom = '1'; } (this)); } </style>
- IE7
-ms-interpolation-mode:bicubic
- 深拷贝js代码
function merge() {
var i, args = arguments, len, ret = {},
doCopy = function (copy, original) {
var value, key;
// An object is replacing a primitive
if (typeof copy !== 'object') {
copy = {};
}
for (key in original) {
if (original.hasOwnProperty(key)) {
value = original[key];
// Copy the contents of objects, but not arrays or DOM nodes
if (
value && typeof value === 'object' &&
Object.prototype.toString.call(value) !== '[object Array]' &&
key !== 'renderTo' && typeof value.nodeType !== 'number'
) {
copy[key] = doCopy(copy[key] || {}, value);
// Primitives and arrays are copied over directly
} else {
copy[key] = original[key];
}
}
}
return copy;
};
if (args[0] === true) {
ret = args[1];
args = Array.prototype.slice.call(args, 2);
}
len = args.length;
for (i = 0; i < len; i++) {
ret = doCopy(ret, args[i]);
}
return ret;
}-
格式化输出，比如 100000000 => 100,000,000
var formatNumber = function (n) { var b = parseInt(n).toString(); var len = b.length; if (len <= 3) { return b; } var r = len % 3; return r > 0 ? b.slice(0, r) + "," + b.slice(r, len).match(/\d{3}/g).join(",") : b.slice(r, len).match(/\d{3}/g).join(","); } var commafy = function (num) { var decimalPart = ''; num = num.toString(); if (num.indexOf('.') != -1) { decimalPart = '.' + num.split('.')[1]; num = parseInt(num.split('.')[0]); } var array = num.toString().split('')， index = -3; while (array.length + index > 0) { array.splice(index, 0, ','); index -= 4; } return array.join('') + decimalPart; }
-
随机数
var random = function (a, b) {
return a + Math.random() * (b - a);
}