Use const

atom/common/lib/init.js

@@ -1,12 +1,7 @@
-var Module, fs, path, timers, wrapWithActivateUvLoop;
-
-fs = require('fs');
-
-path = require('path');
-
-timers = require('timers');
-
-Module = require('module');
+const fs = require('fs');
+const path = require('path');
+const timers = require('timers');
+const Module = require('module');
 
 process.atomBinding = function(name) {
   var e, error;
@@ -32,7 +27,7 @@ if (!process.env.ELECTRON_HIDE_INTERNAL_MODULES) {
 // which would delay the callbacks for arbitrary long time. So we should
 // initiatively activate the uv loop once setImmediate and process.nextTick is
 // called.
-wrapWithActivateUvLoop = function(func) {
+var wrapWithActivateUvLoop = function(func) {
   return function() {
     process.activateUvLoop();
     return func.apply(this, arguments);

atom/common/lib/reset-search-paths.js

@@ -1,8 +1,5 @@
-var Module, path;
-
-path = require('path');
-
-Module = require('module');
+const path = require('path');
+const Module = require('module');
 
 // Clear Node's global search paths.
 Module.globalPaths.length = 0;

atom/renderer/api/lib/desktop-capturer.js

@@ -1,16 +1,15 @@
-var getNextId, ipcRenderer, isValid, nativeImage, nextId, ref,
-  indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
+const ipcRenderer = require('electron').ipcRenderer;
+const nativeImage = require('electron').ref.nativeImage;
 
-ref = require('electron'), ipcRenderer = ref.ipcRenderer, nativeImage = ref.nativeImage;
+var nextId = 0;
+var indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
 
-nextId = 0;
-
-getNextId = function() {
+var getNextId = function() {
   return ++nextId;
 };
 
 // |options.type| can not be empty and has to include 'window' or 'screen'.
-isValid = function(options) {
+var isValid = function(options) {
   return ((options != null ? options.types : void 0) != null) && Array.isArray(options.types);
 };
 

atom/renderer/api/lib/exports/electron.js

@@ -1,6 +1,4 @@
-var common;
-
-common = require('../../../../common/api/lib/exports/electron');
+const common = require('../../../../common/api/lib/exports/electron');
 
 // Import common modules.
 common.defineProperties(exports);

atom/renderer/api/lib/ipc-renderer.js

@@ -1,14 +1,11 @@
-var EventEmitter, binding, ipcRenderer, v8Util,
-  slice = [].slice;
+const EventEmitter = require('events').EventEmitter;
+const binding = process.atomBinding('ipc');
+const v8Util = process.atomBinding('v8_util');
 
-EventEmitter = require('events').EventEmitter;
-
-binding = process.atomBinding('ipc');
-
-v8Util = process.atomBinding('v8_util');
+var slice = [].slice;
 
 // Created by init.coffee.
-ipcRenderer = v8Util.getHiddenValue(global, 'ipc');
+const ipcRenderer = v8Util.getHiddenValue(global, 'ipc');
 
 ipcRenderer.send = function() {
   var args;

atom/renderer/lib/chrome-api.js

@@ -1,8 +1,5 @@
-var chrome, url;
-
-url = require('url');
-
-chrome = window.chrome = window.chrome || {};
+const url = require('url');
+const chrome = window.chrome = window.chrome || {};
 
 chrome.extension = {
   getURL: function(path) {

atom/renderer/lib/inspector.js

@@ -1,5 +1,3 @@
-var convertToMenuTemplate, createFileSelectorElement, createMenu, pathToHtml5FileObject, showFileChooserDialog;
-
 window.onload = function() {
   // Use menu API to show context menu.
   InspectorFrontendHost.showContextMenuAtPoint = createMenu;
@@ -8,7 +6,7 @@ window.onload = function() {
   return WebInspector.createFileSelectorElement = createFileSelectorElement;
 };
 
-convertToMenuTemplate = function(items) {
+var convertToMenuTemplate = function(items) {
   var fn, i, item, len, template;
   template = [];
   fn = function(item) {
@@ -45,11 +43,10 @@ convertToMenuTemplate = function(items) {
   return template;
 };
 
-createMenu = function(x, y, items, document) {
-  var Menu, menu, remote;
-  remote = require('electron').remote;
-  Menu = remote.Menu;
-  menu = Menu.buildFromTemplate(convertToMenuTemplate(items));
+var createMenu = function(x, y, items, document) {
+  const remote = require('electron').remote;
+  const Menu = remote.Menu;
+  const menu = Menu.buildFromTemplate(convertToMenuTemplate(items));
 
   // The menu is expected to show asynchronously.
   return setTimeout(function() {
@@ -57,7 +54,7 @@ createMenu = function(x, y, items, document) {
   });
 };
 
-showFileChooserDialog = function(callback) {
+var showFileChooserDialog = function(callback) {
   var dialog, files, remote;
   remote = require('electron').remote;
   dialog = remote.dialog;
@@ -67,7 +64,7 @@ showFileChooserDialog = function(callback) {
   }
 };
 
-pathToHtml5FileObject = function(path) {
+var pathToHtml5FileObject = function(path) {
   var blob, fs;
   fs = require('fs');
   blob = new Blob([fs.readFileSync(path)]);
@@ -75,7 +72,7 @@ pathToHtml5FileObject = function(path) {
   return blob;
 };
 
-createFileSelectorElement = function(callback) {
+var createFileSelectorElement = function(callback) {
   var fileSelectorElement;
   fileSelectorElement = document.createElement('span');
   fileSelectorElement.style.display = 'none';