source: trip-planner-front/node_modules/core-js/modules/esnext.map.find-key.js

Last change on this file was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 898 bytes
Line 
1'use strict';
2var $ = require('../internals/export');
3var IS_PURE = require('../internals/is-pure');
4var anObject = require('../internals/an-object');
5var bind = require('../internals/function-bind-context');
6var getMapIterator = require('../internals/get-map-iterator');
7var iterate = require('../internals/iterate');
8
9// `Map.prototype.findKey` method
10// https://github.com/tc39/proposal-collection-methods
11$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {
12 findKey: function findKey(callbackfn /* , thisArg */) {
13 var map = anObject(this);
14 var iterator = getMapIterator(map);
15 var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);
16 return iterate(iterator, function (key, value, stop) {
17 if (boundFunction(value, key, map)) return stop(key);
18 }, { AS_ENTRIES: true, IS_ITERATOR: true, INTERRUPTED: true }).result;
19 }
20});
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