123456789101112131415161718192021 |
- 'use strict';
- var $ = require('../internals/export');
- var aCallable = require('../internals/a-callable');
- var anObject = require('../internals/an-object');
- var iterate = require('../internals/iterate');
- // `Map.prototype.merge` method
- // https://github.com/tc39/proposal-collection-methods
- $({ target: 'Map', proto: true, real: true, forced: true }, {
- // eslint-disable-next-line no-unused-vars -- required for `.length`
- merge: function merge(iterable /* ...iterables */) {
- var map = anObject(this);
- var setter = aCallable(map.set);
- var argumentsLength = arguments.length;
- var i = 0;
- while (i < argumentsLength) {
- iterate(arguments[i++], setter, { that: map, AS_ENTRIES: true });
- }
- return map;
- }
- });
|