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- 'use strict';
- var $ = require('../internals/export');
- var sameValueZero = require('../internals/same-value-zero');
- var aMap = require('../internals/a-map');
- var iterate = require('../internals/map-iterate');
- // `Map.prototype.includes` method
- // https://github.com/tc39/proposal-collection-methods
- $({ target: 'Map', proto: true, real: true, forced: true }, {
- includes: function includes(searchElement) {
- return iterate(aMap(this), function (value) {
- if (sameValueZero(value, searchElement)) return true;
- }, true) === true;
- }
- });
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