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.
 
 
 

21 lines
751 B

'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;
}
});