Issue 4795 - Use modern JavaScript syntax

options.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 42 matching lines @@
         callback = lastArg;
 
       for (let i = 0; i < arguments.length - (callback ? 1 : 0); i++)
         message[paramKeys[i]] = arguments[i];
     }
 
     ext.backgroundPage.sendMessage(message, callback);
   };
 }
 
-let getDocLink = wrapper({type: "app.get", what: "doclink"}, "link");
-let getInfo = wrapper({type: "app.get"}, "what");
-let getPref = wrapper({type: "prefs.get"}, "key");
-let togglePref = wrapper({type: "prefs.toggle"}, "key");
-let getSubscriptions = wrapper({type: "subscriptions.get"},
-                               "downloadable", "special");
-let removeSubscription = wrapper({type: "subscriptions.remove"}, "url");
-let addSubscription = wrapper({type: "subscriptions.add"},
+const getDocLink = wrapper({type: "app.get", what: "doclink"}, "link");
+const getInfo = wrapper({type: "app.get"}, "what");
+const getPref = wrapper({type: "prefs.get"}, "key");
+const togglePref = wrapper({type: "prefs.toggle"}, "key");
+const getSubscriptions = wrapper({type: "subscriptions.get"},
+                                 "downloadable", "special");
+const removeSubscription = wrapper({type: "subscriptions.remove"}, "url");
+const addSubscription = wrapper({type: "subscriptions.add"},
                                 "url", "title", "homepage");
-let toggleSubscription = wrapper({type: "subscriptions.toggle"},
-                                 "url", "keepInstalled");
-let updateSubscription = wrapper({type: "subscriptions.update"}, "url");
-let importRawFilters = wrapper({type: "filters.importRaw"},
-                               "text", "removeExisting");
-let addFilter = wrapper({type: "filters.add"}, "text");
-let getFilters = wrapper({type: "filters.get"}, "subscriptionUrl");
-let removeFilter = wrapper({type: "filters.remove"}, "text");
-
-let whitelistedDomainRegexp = /^@@\|\|([^\/:]+)\^\$document$/;
+const toggleSubscription = wrapper({type: "subscriptions.toggle"},
+                                   "url", "keepInstalled");
+const updateSubscription = wrapper({type: "subscriptions.update"}, "url");
+const importRawFilters = wrapper({type: "filters.importRaw"},
+                                 "text", "removeExisting");
+const addFilter = wrapper({type: "filters.add"}, "text");
+const getFilters = wrapper({type: "filters.get"}, "subscriptionUrl");
+const removeFilter = wrapper({type: "filters.remove"}, "text");
+
+const whitelistedDomainRegexp = /^@@\|\|([^\/:]+)\^\$document$/;
 let delayedSubscriptionSelection = null;
 
 let acceptableAdsUrl;
 
 // Loads options from localStorage and sets UI elements accordingly
 function loadOptions()
 {
   // Set page title to i18n version of "Adblock Plus Options"
   document.title = i18n.getMessage("options");
 
@@ skipping 629 matching lines @@
       onFilterMessage(message.action, message.args[0]);
       break;
     case "prefs.respond":
       onPrefMessage(message.action, message.args[0]);
       break;
     case "subscriptions.respond":
       onSubscriptionMessage(message.action, message.args[0]);
       break;
   }
 });