/** * @license Apache-2.0 * * Copyright (c) 2018 The Stdlib Authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ 'use strict'; // MODULES // var keys = require( './builtin.js' ); // FUNCTIONS // /** * Tests the built-in `Object.keys()` implementation when provided `arguments`. * * @private * @returns {boolean} boolean indicating whether the built-in implementation returns the expected number of keys */ function test() { return ( keys( arguments ) || '' ).length !== 2; } // MAIN // /** * Tests whether the built-in `Object.keys()` implementation supports providing `arguments` as an input value. * * ## Notes * * - Safari 5.0 does **not** support `arguments` as an input value. * * @private * @returns {boolean} boolean indicating whether a built-in implementation supports `arguments` */ function check() { return test( 1, 2 ); } // EXPORTS // module.exports = check;