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musix-oss/node_modules/core-js/modules/esnext.map.find.js
2019-10-10 16:43:04 +03:00

21 lines
847 B
JavaScript

'use strict';
var $ = require('../internals/export');
var IS_PURE = require('../internals/is-pure');
var anObject = require('../internals/an-object');
var bind = require('../internals/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: IS_PURE }, {
find: function find(callbackfn /* , thisArg */) {
var map = anObject(this);
var iterator = getMapIterator(map);
var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);
return iterate(iterator, function (key, value) {
if (boundFunction(value, key, map)) return iterate.stop(value);
}, undefined, true, true).result;
}
});