Arrow function expression

scripts/filters/comment/changyan.js

@@ -7,7 +7,7 @@ const {iconText} = require('./common');
 const priority = hexo.config.inject_priority || {};
 
 // Add comment
-hexo.extend.filter.register('theme_inject', function(injects) {
+hexo.extend.filter.register('theme_inject', injects => {
   let theme = hexo.theme.config;
   if (!theme.changyan.enable || !theme.changyan.appid || !theme.changyan.appkey) return;
 
@@ -22,7 +22,7 @@ hexo.extend.filter.register('theme_inject', function(injects) {
 }, priority.changyan);
 
 // Add post_meta
-hexo.extend.filter.register('theme_inject', function(injects) {
+hexo.extend.filter.register('theme_inject', injects => {
   let theme = hexo.theme.config;
   if (!theme.changyan.enable || !theme.changyan.appid || !theme.changyan.appkey) return;
 

scripts/filters/comment/disqus.js

@@ -7,7 +7,7 @@ const {iconText} = require('./common');
 const priority = hexo.config.inject_priority || {};
 
 // Add comment
-hexo.extend.filter.register('theme_inject', function(injects) {
+hexo.extend.filter.register('theme_inject', injects => {
   let theme = hexo.theme.config;
   if (!theme.disqus.enable || !theme.disqus.shortname) return;
 
@@ -26,7 +26,7 @@ hexo.extend.filter.register('theme_inject', function(injects) {
 }, priority.disqus);
 
 // Add post_meta
-hexo.extend.filter.register('theme_inject', function(injects) {
+hexo.extend.filter.register('theme_inject', injects => {
   let theme = hexo.theme.config;
   if (!theme.disqus.enable || !theme.disqus.shortname || !theme.disqus.count) return;
 

scripts/filters/comment/disqusjs.js

@@ -6,7 +6,7 @@ const path = require('path');
 const priority = hexo.config.inject_priority || {};
 
 // Add comment
-hexo.extend.filter.register('theme_inject', function(injects) {
+hexo.extend.filter.register('theme_inject', injects => {
   let theme = hexo.theme.config;
   if (!theme.disqusjs.enable || !theme.disqusjs.shortname || !theme.disqusjs.apikey) return;
 

scripts/filters/comment/facebook-comments-plugin.js

@@ -6,7 +6,7 @@ const {iconText} = require('./common');
 const priority = hexo.config.inject_priority || {};
 
 // Add comment
-hexo.extend.filter.register('theme_inject', function(injects) {
+hexo.extend.filter.register('theme_inject', injects => {
   let theme = hexo.theme.config;
   if (!theme.facebook_sdk.enable || !theme.facebook_comments_plugin.enable) return;
 
@@ -24,7 +24,7 @@ hexo.extend.filter.register('theme_inject', function(injects) {
 }, priority.facebook_comments_plugin);
 
 // Add post_meta
-hexo.extend.filter.register('theme_inject', function(injects) {
+hexo.extend.filter.register('theme_inject', injects => {
   let theme = hexo.theme.config;
   if (!theme.facebook_sdk.enable || !theme.facebook_comments_plugin.enable) return;
 

scripts/filters/comment/gitalk.js

@@ -6,7 +6,7 @@ const path = require('path');
 const priority = hexo.config.inject_priority || {};
 
 // Add comment
-hexo.extend.filter.register('theme_inject', function(injects) {
+hexo.extend.filter.register('theme_inject', injects => {
   let theme = hexo.theme.config;
   if (!theme.gitalk.enable) return;
 

scripts/filters/comment/livere.js

@@ -6,7 +6,7 @@ const path = require('path');
 const priority = hexo.config.inject_priority || {};
 
 // Add comment
-hexo.extend.filter.register('theme_inject', function(injects) {
+hexo.extend.filter.register('theme_inject', injects => {
   let theme = hexo.theme.config;
   if (!theme.livere_uid) return;
 

scripts/filters/comment/valine.js

@@ -7,7 +7,7 @@ const {iconText} = require('./common');
 const priority = hexo.config.inject_priority || {};
 
 // Add comment
-hexo.extend.filter.register('theme_inject', function(injects) {
+hexo.extend.filter.register('theme_inject', injects => {
   let theme = hexo.theme.config;
   if (!theme.valine.enable || !theme.valine.appid || !theme.valine.appkey) return;
 
@@ -18,7 +18,7 @@ hexo.extend.filter.register('theme_inject', function(injects) {
 }, priority.valine);
 
 // Add post_meta
-hexo.extend.filter.register('theme_inject', function(injects) {
+hexo.extend.filter.register('theme_inject', injects => {
   let theme = hexo.theme.config;
   if (!theme.valine.enable || !theme.valine.appid || !theme.valine.appkey) return;
 

scripts/filters/comment/vkontakte.js

@@ -5,7 +5,7 @@
 const priority = hexo.config.inject_priority || {};
 
 // Add comment
-hexo.extend.filter.register('theme_inject', function(injects) {
+hexo.extend.filter.register('theme_inject', injects => {
   let theme = hexo.theme.config;
   if (!theme.vkontakte_api.enable || !theme.vkontakte_api.comments) return;
 

scripts/filters/comment/warn.js

@@ -2,7 +2,7 @@
 
 'use strict';
 
-hexo.extend.filter.register('theme_inject', function(injects) {
+hexo.extend.filter.register('theme_inject', injects => {
   if (injects.comment.raws.length > 1) {
     hexo.log.warn('It is currently not supported to launch mutli-comments systems at the same time, so stay tuned for subsequent versions of iteration.');
     hexo.log.warn('Please keep one of the following.');

scripts/filters/default-injects.js

@@ -2,39 +2,25 @@
 
 'use strict';
 
-const points = require('./../injects-point');
+const points = require('../injects-point');
 
-hexo.extend.filter.register('theme_inject', (injects) => {
+hexo.extend.filter.register('theme_inject', injects => {
   let filePath = hexo.theme.config.custom_file_path;
 
   if (!filePath) {
     return;
   }
 
-  points.views.forEach((key) => {
+  points.views.forEach(key => {
     if (filePath[key]) {
       injects[key].file('custom', filePath[key]);
     }
   });
 
-  points.styles.forEach((key) => {
+  points.styles.forEach(key => {
     if (filePath[key]) {
       injects[key].push(filePath[key]);
     }
-    // Compatible, but like head header etc, it shouldn't add 's' suffix.
-    let oldKey = key + 's';
-    if (filePath[oldKey]) {
-      injects[key].push(filePath[oldKey]);
-      hexo.log.warn(`WARNING: Format. Please use 'custom_file_path.${key}' instead 'custom_file_path.${oldKey}'.`);
-    }
   });
 
-  // Compatible, but please use custom_file_path.
-  if (hexo.theme.config.footer.custom_text) {
-    injects.footer.raw('custom-text', `
-    <div class="footer-custom">{{ theme.footer.custom_text }}</div>
-    `, {}, {cache: true});
-    hexo.log.warn(`WARNING: 'footer.custom_text' will not longer be supported. Please use 'custom_file_path.footer' instead`);
-  }
-
 }, 99);

scripts/filters/exturl.js

@@ -2,22 +2,23 @@
 
 'use strict';
 
-hexo.extend.filter.register('after_post_render', function(data) {
+let cheerio;
+
+hexo.extend.filter.register('after_post_render', data => {
   var theme = hexo.theme.config;
   // Exit if `exturl` option disable in NexT.
   if (!theme.exturl) return;
 
-  var url = require('url');
-  var cheerio;
-
-  var config = this.config;
+  const url = require('url');
 
   if (!cheerio) cheerio = require('cheerio');
 
-  var $ = cheerio.load(data.content, {decodeEntities: false});
+  const $ = cheerio.load(data.content, {decodeEntities: false});
+
+  var config = this.config;
   var siteHost = url.parse(config.url).hostname || config.url;
 
-  $('a').each(function() {
+  $('a').each(() => {
     var href = $(this).attr('href');
     // Exit if the href attribute doesn't exists.
     if (!href) return;
@@ -35,7 +36,7 @@ hexo.extend.filter.register('after_post_render', function(data) {
 
     var encoded = Buffer.from(href).toString('base64');
 
-    $(this).replaceWith(function() {
+    $(this).replaceWith(() => {
       return $(`<span class="exturl" data-url="${encoded}" title="${title}">${$(this).html()}<i class="fa fa-external-link"></i></span>`);
     });
 

scripts/filters/lazyload.js

@@ -2,20 +2,23 @@
 
 'use strict';
 
-hexo.extend.filter.register('after_post_render', function(data) {
+let cheerio;
+
+hexo.extend.filter.register('after_post_render', data => {
   var theme = hexo.theme.config;
   // Exit if `lazyload` option disable in NexT.
   if (!theme.lazyload) return;
 
-  var cheerio;
-
   if (!cheerio) cheerio = require('cheerio');
 
-  var $ = cheerio.load(data.content, {decodeEntities: false});
+  const $ = cheerio.load(data.content, {decodeEntities: false});
+
+  const images = $('img');
+  if (!images.length) return data;
 
-  $('img').each(function() {
-    var $image = $(this);
-    $image.attr('data-src', $image.attr('src')).removeAttr('src');
+  Array.from(images).forEach(img => {
+    let src = $(img).attr('src');
+    $(img).attr('data-src', src).removeAttr('src');
   });
 
   data.content = $.html();

scripts/helpers/engine.js

@@ -2,13 +2,11 @@
 
 'use strict';
 
-hexo.extend.helper.register('hexo_env', function(type) {
-  return this.env[type];
-});
+hexo.extend.helper.register('hexo_env', type => hexo.env[type]);
 
-hexo.extend.helper.register('next_env', function(type) {
-  var path = require('path');
-  var env = require(path.normalize('../../package.json'));
+hexo.extend.helper.register('next_env', type => {
+  const path = require('path');
+  const env = require(path.normalize('../../package.json'));
   return env[type];
 });
 

scripts/helpers/font.js

@@ -2,7 +2,7 @@
 
 'use strict';
 
-hexo.extend.helper.register('next_font', function() {
+hexo.extend.helper.register('next_font', () => {
   var fontConfig = hexo.theme.config.font;
 
   if (!fontConfig || !fontConfig.enable) {
@@ -15,17 +15,14 @@ hexo.extend.helper.register('next_font', function() {
   var fontHost = fontConfig.host || '//fonts.googleapis.com';
 
   //Get a font list from fontConfig
-  var fontFamilies = ['global', 'title', 'headings', 'posts', 'codes'].map(function(item) {
+  var fontFamilies = ['global', 'title', 'headings', 'posts', 'codes'].map(item => {
     if (fontConfig[item] && fontConfig[item].family && fontConfig[item].external) {
       return fontConfig[item].family + fontStyles;
     }
     return '';
   });
 
-  fontFamilies = fontFamilies.filter(function(item) {
-    return item !== '';
-  });
-
+  fontFamilies = fontFamilies.filter(item => item !== '');
   fontFamilies = Array.from(new Set(fontFamilies));
   fontFamilies = fontFamilies.join('|');
 

scripts/merge-configs.js → scripts/hexo-event.js

@@ -4,7 +4,7 @@
 
 const merge = require('lodash/merge');
 
-hexo.on('generateBefore', function() {
+hexo.on('generateBefore', () => {
   if (hexo.locals.get) {
     var data = hexo.locals.get('data');
 
@@ -29,7 +29,7 @@ hexo.on('generateBefore', function() {
       var lang = this.config.language;
       var i18n = this.theme.i18n;
 
-      var mergeLang = function(lang) {
+      var mergeLang = lang => {
         i18n.set(lang, merge(i18n.get([lang]), data.languages[lang]));
       };
 
@@ -48,7 +48,7 @@ hexo.on('generateBefore', function() {
 
 });
 
-hexo.on('generateAfter', function() {
+hexo.on('generateAfter', () => {
   if (!hexo.theme.config.reminder) return;
   const https = require('https');
   const path = require('path');

scripts/injects.js

@@ -34,30 +34,30 @@ class ViewInject {
 // Init injects
 function initInject() {
   let injects = {};
-  points.styles.forEach((item) => {
+  points.styles.forEach(item => {
     injects[item] = new StylusInject();
   });
-  points.views.forEach((item) => {
+  points.views.forEach(item => {
     injects[item] = new ViewInject();
   });
   return injects;
 }
 
-module.exports = function(hexo) {
+module.exports = hexo => {
   // Exec theme_inject filter
   let injects = initInject();
   hexo.execFilterSync('theme_inject', injects);
   hexo.theme.config.injects = {};
 
   // Inject stylus, and get relative path base on hexo dir.
-  points.styles.forEach((type) => {
+  points.styles.forEach(type => {
     hexo.theme.config.injects[type] = injects[type].files.map((item) => path.relative(hexo.base_dir, item));
   });
 
   // Inject views
-  points.views.forEach((type) => {
+  points.views.forEach(type => {
     hexo.theme.config.injects[type] = [];
-    injects[type].raws.forEach((injectObj) => {
+    injects[type].raws.forEach(injectObj => {
       // If there is no suffix, will add `.swig`
       if (injectObj.name.indexOf('.') < 0) {
         injectObj.name += '.swig';

scripts/tags/button.js

@@ -14,7 +14,7 @@ function postButton(args) {
   var title = args[3] || '';
 
   if (!url) {
-    hexo.log.warn('URL can NOT be empty');
+    hexo.log.warn('URL can NOT be empty.');
   }
 
   text = text.trim();

scripts/tags/caniuse.js

@@ -6,18 +6,18 @@
 
 'use strict';
 
-const caniUse = (args) => {
+function caniUse(args) {
   args = args.join('').split('@');
-  let feature = args[0];
-  let periods = args[1] || 'current';
+  var feature = args[0];
+  var periods = args[1] || 'current';
 
   if (!feature) {
-    hexo.log.w('Caniuse feature can NOT be empty');
+    hexo.log.warn('Caniuse feature can NOT be empty.');
     return '';
   }
 
   return `<iframe data-feature="${feature}" src="https://caniuse.bitsofco.de/embed/index.html?feat=${feature}&periods=${periods}&accessible-colours=false" frameborder="0" width="100%" height="400px"></iframe>`;
-};
+}
 
 hexo.extend.tag.register('caniuse', caniUse, {async: true});
 hexo.extend.tag.register('can', caniUse, {async: true});

scripts/tags/full-image.js

@@ -14,7 +14,7 @@ function fullImage(args) {
   var width = args[3] || '';
 
   if (!src) {
-    hexo.log.warn('Image src can NOT be empty');
+    hexo.log.warn('Image src can NOT be empty.');
   }
 
   var image = [`<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject"><img itemprop="url image" src="${src}" class="full-image"`];

scripts/tags/include-raw.js

@@ -12,12 +12,12 @@ var fs = require('hexo-fs');
 function includeRaw(args) {
   var path = pathFn.join(hexo.source_dir, args[0]);
 
-  return fs.exists(path).then(function(exist) {
+  return fs.exists(path).then(exist => {
     if (!exist) {
       hexo.log.error('Include file not found!');
       return;
     }
-    return fs.readFile(path).then(function(contents) {
+    return fs.readFile(path).then(contents => {
       if (!contents) {
         hexo.log.warn('Include file empty.');
         return;