Use `const`

atom/browser/api/lib/menu-item.js

@@ -26,8 +26,8 @@ MenuItem = (function() {
   MenuItem.types = ['normal', 'separator', 'submenu', 'checkbox', 'radio'];
 
   function MenuItem(options) {
-    var Menu, click, ref;
-    Menu = require('electron').Menu;
+    var click, ref;
+    const Menu = require('electron').Menu;
     click = options.click, this.selector = options.selector, this.type = options.type, this.role = options.role, this.label = options.label, this.sublabel = options.sublabel, this.accelerator = options.accelerator, this.icon = options.icon, this.enabled = options.enabled, this.visible = options.visible, this.checked = options.checked, this.submenu = options.submenu;
     if ((this.submenu != null) && this.submenu.constructor !== Menu) {
       this.submenu = Menu.buildFromTemplate(this.submenu);

atom/browser/api/lib/menu.js

@@ -1,19 +1,15 @@
-var BrowserWindow, EventEmitter, Menu, MenuItem, applicationMenu, bindings, generateGroupId, indexOfItemById, indexToInsertByPosition, nextGroupId, ref, v8Util;
-
-ref = require('electron'), BrowserWindow = ref.BrowserWindow, MenuItem = ref.MenuItem;
-
-EventEmitter = require('events').EventEmitter;
-
-v8Util = process.atomBinding('v8_util');
-
-bindings = process.atomBinding('menu');
+const BrowserWindow = require('electron').BrowserWindow;
+const MenuItem = require('electron').MenuItem;
+const EventEmitter = require('events').EventEmitter;
+const v8Util = process.atomBinding('v8_util');
+const bindings = process.atomBinding('menu');
 
 // Automatically generated radio menu item's group id.
-nextGroupId = 0;
+var nextGroupId = 0;
 
 // Search between seperators to find a radio menu item and return its group id,
 // otherwise generate a group id.
-generateGroupId = function(items, pos) {
+var generateGroupId = function(items, pos) {
   var i, item, j, k, ref1, ref2, ref3;
   if (pos > 0) {
     for (i = j = ref1 = pos - 1; ref1 <= 0 ? j <= 0 : j >= 0; i = ref1 <= 0 ? ++j : --j) {
@@ -40,7 +36,7 @@ generateGroupId = function(items, pos) {
 };
 
 // Returns the index of item according to |id|.
-indexOfItemById = function(items, id) {
+var indexOfItemById = function(items, id) {
   var i, item, j, len;
   for (i = j = 0, len = items.length; j < len; i = ++j) {
     item = items[i];
@@ -52,7 +48,7 @@ indexOfItemById = function(items, id) {
 };
 
 // Returns the index of where to insert the item according to |position|.
-indexToInsertByPosition = function(items, position) {
+var indexToInsertByPosition = function(items, position) {
   var id, insertIndex, query, ref1;
   if (!position) {
     return items.length;
@@ -87,7 +83,7 @@ indexToInsertByPosition = function(items, position) {
   return insertIndex;
 };
 
-Menu = bindings.Menu;
+const Menu = bindings.Menu;
 
 Menu.prototype.__proto__ = EventEmitter.prototype;
 
@@ -265,7 +261,7 @@ Menu.prototype._callMenuWillShow = function() {
   return results;
 };
 
-applicationMenu = null;
+var applicationMenu = null;
 
 Menu.setApplicationMenu = function(menu) {
   var j, len, results, w, windows;

atom/browser/api/lib/navigation-controller.js

@@ -1,7 +1,6 @@
-var NavigationController, ipcMain,
-  slice = [].slice;
+const ipcMain = require('electron').ipcMain;
 
-ipcMain = require('electron').ipcMain;
+var slice = [].slice;
 
 // The history operation in renderer is redirected to browser.
 ipcMain.on('ATOM_SHELL_NAVIGATION_CONTROLLER', function() {
@@ -21,7 +20,7 @@ ipcMain.on('ATOM_SHELL_SYNC_NAVIGATION_CONTROLLER', function() {
 // control on user land, and only rely on WebContents.loadURL for navigation.
 // This helps us avoid Chromium's various optimizations so we can ensure renderer
 // process is restarted everytime.
-NavigationController = (function() {
+var NavigationController = (function() {
   function NavigationController(webContents) {
     this.webContents = webContents;
     this.clearHistory();

atom/browser/api/lib/power-monitor.js

@@ -1,8 +1,5 @@
-var EventEmitter, powerMonitor;
-
-EventEmitter = require('events').EventEmitter;
-
-powerMonitor = process.atomBinding('power_monitor').powerMonitor;
+const EventEmitter = require('events').EventEmitter;
+const powerMonitor = process.atomBinding('power_monitor').powerMonitor;
 
 powerMonitor.__proto__ = EventEmitter.prototype;
 

atom/browser/api/lib/protocol.js

@@ -1,15 +1,13 @@
-var app, logAndThrow, protocol;
-
-app = require('electron').app;
+const app = require('electron').app;
 
 if (!app.isReady()) {
   throw new Error('Can not initialize protocol module before app is ready');
 }
 
-protocol = process.atomBinding('protocol').protocol;
+const protocol = process.atomBinding('protocol').protocol;
 
 // Warn about removed APIs.
-logAndThrow = function(callback, message) {
+var logAndThrow = function(callback, message) {
   console.error(message);
   if (callback) {
     return callback(new Error(message));

atom/browser/api/lib/screen.js

@@ -1,8 +1,5 @@
-var EventEmitter, screen;
-
-EventEmitter = require('events').EventEmitter;
-
-screen = process.atomBinding('screen').screen;
+const EventEmitter = require('events').EventEmitter;
+const screen = process.atomBinding('screen').screen;
 
 screen.__proto__ = EventEmitter.prototype;
 

atom/browser/api/lib/session.js

@@ -1,10 +1,6 @@
-var EventEmitter, PERSIST_PERFIX, bindings, wrapSession;
-
-EventEmitter = require('events').EventEmitter;
-
-bindings = process.atomBinding('session');
-
-PERSIST_PERFIX = 'persist:';
+const EventEmitter = require('events').EventEmitter;
+const bindings = process.atomBinding('session');
+const PERSIST_PERFIX = 'persist:';
 
 // Returns the Session from |partition| string.
 exports.fromPartition = function(partition) {
@@ -29,7 +25,7 @@ Object.defineProperty(exports, 'defaultSession', {
   }
 });
 
-wrapSession = function(session) {
+var wrapSession = function(session) {
   // session is an EventEmitter.
   return session.__proto__ = EventEmitter.prototype;
 };

atom/browser/api/lib/tray.js

@@ -1,10 +1,6 @@
-var EventEmitter, Tray, deprecate;
-
-deprecate = require('electron').deprecate;
-
-EventEmitter = require('events').EventEmitter;
-
-Tray = process.atomBinding('tray').Tray;
+const deprecate = require('electron').deprecate;
+const EventEmitter = require('events').EventEmitter;
+const Tray = process.atomBinding('tray').Tray;
 
 Tray.prototype.__proto__ = EventEmitter.prototype;
 

atom/browser/api/lib/web-contents.js

@@ -1,21 +1,22 @@
 'use strict';
 
-var EventEmitter, Menu, NavigationController, PDFPageSize, binding, deprecate, getNextId, ipcMain, nextId, ref, session, wrapWebContents,
-  slice = [].slice;
+const EventEmitter = require('events').EventEmitter;
+const deprecate = require('electron').deprecate;
+const ipcMain = require('electron').ipcMain;
+const session = require('electron').session;
+const NavigationController = require('electron').NavigationController;
+const Menu = require('electron').Menu;
 
-EventEmitter = require('events').EventEmitter;
+const binding = process.atomBinding('web_contents');
 
-ref = require('electron'), deprecate = ref.deprecate, ipcMain = ref.ipcMain, session = ref.session, NavigationController = ref.NavigationController, Menu = ref.Menu;
+let  slice = [].slice;
+let nextId = 0;
 
-binding = process.atomBinding('web_contents');
-
-nextId = 0;
-
-getNextId = function() {
+let getNextId = function() {
   return ++nextId;
 };
 
-PDFPageSize = {
+let PDFPageSize = {
   A5: {
     custom_display_name: "A5",
     height_microns: 210000,
@@ -64,7 +65,7 @@ const webFrameMethods = [
   'setZoomLevelLimits',
 ];
 
-wrapWebContents = function(webContents) {
+let wrapWebContents = function(webContents) {
   // webContents is an EventEmitter.
   var controller, method, name, ref1;
   webContents.__proto__ = EventEmitter.prototype;

atom/browser/lib/chrome-extension.js

@@ -1,33 +1,28 @@
-var app, electron, extensionInfoMap, fs, getExtensionInfoFromPath, getHostForPath, getPathForHost, hostPathMap, hostPathMapNextKey, loadedExtensions, loadedExtensionsPath, path, url;
-
-electron = require('electron');
-
-fs = require('fs');
-
-path = require('path');
-
-url = require('url');
+const electron = require('electron');
+const app = electron.app;
+const fs = require('fs');
+const path = require('path');
+const url = require('url');
 
 // Mapping between hostname and file path.
-hostPathMap = {};
+var hostPathMap = {};
+var hostPathMapNextKey = 0;
 
-hostPathMapNextKey = 0;
-
-getHostForPath = function(path) {
+var getHostForPath = function(path) {
   var key;
   key = "extension-" + (++hostPathMapNextKey);
   hostPathMap[key] = path;
   return key;
 };
 
-getPathForHost = function(host) {
+var getPathForHost = function(host) {
   return hostPathMap[host];
 };
 
 // Cache extensionInfo.
-extensionInfoMap = {};
+var extensionInfoMap = {};
 
-getExtensionInfoFromPath = function(srcDirectory) {
+var getExtensionInfoFromPath = function(srcDirectory) {
   var manifest, page;
   manifest = JSON.parse(fs.readFileSync(path.join(srcDirectory, 'manifest.json')));
   if (extensionInfoMap[manifest.name] == null) {
@@ -51,11 +46,8 @@ getExtensionInfoFromPath = function(srcDirectory) {
 };
 
 // The loaded extensions cache and its persistent path.
-loadedExtensions = null;
-loadedExtensionsPath = null;
-
-// Persistent loaded extensions.
-app = electron.app;
+var loadedExtensions = null;
+var loadedExtensionsPath = null;
 
 app.on('will-quit', function() {
   var e, error1, error2;