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.
19 lines
838 B
19 lines
838 B
'use strict'; |
|
var $ = require('../internals/export'); |
|
var anObject = require('../internals/an-object'); |
|
var bind = require('../internals/function-bind-context'); |
|
var getMapIterator = require('../internals/get-map-iterator'); |
|
var iterate = require('../internals/iterate'); |
|
|
|
// `Map.prototype.find` method |
|
// https://github.com/tc39/proposal-collection-methods |
|
$({ target: 'Map', proto: true, real: true, forced: true }, { |
|
find: function find(callbackfn /* , thisArg */) { |
|
var map = anObject(this); |
|
var iterator = getMapIterator(map); |
|
var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined); |
|
return iterate(iterator, function (key, value, stop) { |
|
if (boundFunction(value, key, map)) return stop(value); |
|
}, { AS_ENTRIES: true, IS_ITERATOR: true, INTERRUPTED: true }).result; |
|
} |
|
});
|
|
|