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.
23 lines
745 B
23 lines
745 B
1 year ago
|
'use strict';
|
||
|
|
var $ = require('../internals/export');
|
||
|
|
var aMap = require('../internals/a-map');
|
||
|
|
var iterate = require('../internals/iterate');
|
||
|
|
var set = require('../internals/map-helpers').set;
|
||
|
|
|
||
|
|
// `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 = aMap(this);
|
||
|
|
var argumentsLength = arguments.length;
|
||
|
|
var i = 0;
|
||
|
|
while (i < argumentsLength) {
|
||
|
|
iterate(arguments[i++], function (key, value) {
|
||
|
|
set(map, key, value);
|
||
|
|
}, { AS_ENTRIES: true });
|
||
|
|
}
|
||
|
|
return map;
|
||
|
|
}
|
||
|
|
});
|