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							- 'use strict';
 
- // TODO: Remove from `core-js@4`
 
- var $ = require('../internals/export');
 
- var $group = require('../internals/array-group');
 
- var arrayMethodIsStrict = require('../internals/array-method-is-strict');
 
- var addToUnscopables = require('../internals/add-to-unscopables');
 
- // `Array.prototype.groupBy` method
 
- // https://github.com/tc39/proposal-array-grouping
 
- // https://bugs.webkit.org/show_bug.cgi?id=236541
 
- $({ target: 'Array', proto: true, forced: !arrayMethodIsStrict('groupBy') }, {
 
-   groupBy: function groupBy(callbackfn /* , thisArg */) {
 
-     var thisArg = arguments.length > 1 ? arguments[1] : undefined;
 
-     return $group(this, callbackfn, thisArg);
 
-   }
 
- });
 
- addToUnscopables('groupBy');
 
 
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