Issue 4878 - Start using ESLint for adblockpluscore

test/filterClasses.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
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 "use strict";
 
-let {createSandbox} = require("./_common");
+const {createSandbox} = require("./_common");
 
 let Filter = null;
 let InvalidFilter = null;
 let CommentFilter = null;
 let ActiveFilter = null;
 let RegExpFilter = null;
 let BlockingFilter = null;
 let WhitelistFilter = null;
 let ElemHideBase = null;
 let ElemHideFilter = null;
@@ skipping 368 matching lines @@
     test, "foo.com##[-abp-properties='/margin: [3-4]{2}/']", [
       "type=elemhideemulation",
       "text=foo.com##[-abp-properties='/margin: [3-4]{2}/']",
       "selectorDomain=foo.com",
       "selector=[-abp-properties='/margin: [3-4]\\x7B 2\\x7D /']",
       "domains=FOO.COM"
     ]
   );
   test.done();
 };