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17 lines
619 B
JavaScript
17 lines
619 B
JavaScript
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'use strict';
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var $ = require('../internals/export');
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var $groupBy = require('../internals/array-group-by');
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var arraySpeciesConstructor = require('../internals/array-species-constructor');
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var addToUnscopables = require('../internals/add-to-unscopables');
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// `Array.prototype.groupBy` method
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// https://github.com/tc39/proposal-array-grouping
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$({ target: 'Array', proto: true }, {
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groupBy: function groupBy(callbackfn /* , thisArg */) {
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var thisArg = arguments.length > 1 ? arguments[1] : undefined;
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return $groupBy(this, callbackfn, thisArg, arraySpeciesConstructor);
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}
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});
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addToUnscopables('groupBy');
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