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Editing: es.array.filter.js
'use strict'; var $ = require('../internals/export'); var $filter = require('../internals/array-iteration').filter; var arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support'); var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('filter'); // `Array.prototype.filter` method // https://tc39.es/ecma262/#sec-array.prototype.filter // with adding support of @@species $({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT }, { filter: function filter(callbackfn /* , thisArg */) { return $filter(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined); } });
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