mirror of
https://github.com/idanoo/GoScrobble.git
synced 2024-11-24 17:35:16 +00:00
27 lines
1.1 KiB
JavaScript
27 lines
1.1 KiB
JavaScript
|
'use strict';
|
||
|
var $ = require('../internals/export');
|
||
|
var IS_PURE = require('../internals/is-pure');
|
||
|
var getBuiltIn = require('../internals/get-built-in');
|
||
|
var anObject = require('../internals/an-object');
|
||
|
var aFunction = require('../internals/a-function');
|
||
|
var bind = require('../internals/function-bind-context');
|
||
|
var speciesConstructor = require('../internals/species-constructor');
|
||
|
var getMapIterator = require('../internals/get-map-iterator');
|
||
|
var iterate = require('../internals/iterate');
|
||
|
|
||
|
// `Map.prototype.mapValues` method
|
||
|
// https://github.com/tc39/proposal-collection-methods
|
||
|
$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {
|
||
|
mapValues: function mapValues(callbackfn /* , thisArg */) {
|
||
|
var map = anObject(this);
|
||
|
var iterator = getMapIterator(map);
|
||
|
var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);
|
||
|
var newMap = new (speciesConstructor(map, getBuiltIn('Map')))();
|
||
|
var setter = aFunction(newMap.set);
|
||
|
iterate(iterator, function (key, value) {
|
||
|
setter.call(newMap, key, boundFunction(value, key, map));
|
||
|
}, { AS_ENTRIES: true, IS_ITERATOR: true });
|
||
|
return newMap;
|
||
|
}
|
||
|
});
|