'use strict'; var $ = require('../internals/export'); var bind = require('../internals/function-bind-context'); var aMap = require('../internals/a-map'); var iterate = require('../internals/map-iterate'); // `Map.prototype.some` method // https://github.com/tc39/proposal-collection-methods $({ target: 'Map', proto: true, real: true, forced: true }, { some: function some(callbackfn /* , thisArg */) { var map = aMap(this); var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined); return iterate(map, function (value, key) { if (boundFunction(value, key, map)) return true; }, true) === true; } });