Izmjenjena struktura, dodan backand

web/node_modules/core-js/modules/es7.array.includes.js

@@ -0,0 +1,12 @@
+'use strict';
+var $export   = require('./$.export')
+  , $includes = require('./$.array-includes')(true);
+
+$export($export.P, 'Array', {
+  // https://github.com/domenic/Array.prototype.includes
+  includes: function includes(el /*, fromIndex = 0 */){
+    return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined);
+  }
+});
+
+require('./$.add-to-unscopables')('includes');