'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, arity: 1, 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;
|
}
|
});
|
