You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
18 lines
752 B
18 lines
752 B
4 years ago
|
'use strict';
|
||
|
|
var $ = require('../internals/export');
|
||
|
|
var IS_PURE = require('../internals/is-pure');
|
||
|
|
var anObject = require('../internals/an-object');
|
||
|
|
var getMapIterator = require('../internals/get-map-iterator');
|
||
|
|
var sameValueZero = require('../internals/same-value-zero');
|
||
|
|
var iterate = require('../internals/iterate');
|
||
|
|
|
||
|
|
// `Map.prototype.includes` method
|
||
|
|
// https://github.com/tc39/proposal-collection-methods
|
||
|
|
$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {
|
||
|
|
includes: function includes(searchElement) {
|
||
|
|
return iterate(getMapIterator(anObject(this)), function (key, value, stop) {
|
||
|
|
if (sameValueZero(value, searchElement)) return stop();
|
||
|
|
}, { AS_ENTRIES: true, IS_ITERATOR: true, INTERRUPTED: true }).stopped;
|
||
|
|
}
|
||
|
|
});
|