/** * @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 evil = require( '@stdlib/utils/eval' ); // MAIN // /** * Tests for native `class` support. * * @returns {boolean} boolean indicating if an environment has native `class` support * * @example * var bool = hasClassSupport(); * if ( bool ) { * console.log( 'Environment has native class support.' ); * } else { * console.log( 'Environment lacks native class support.' ); * } */ function hasClassSupport() { var bool; try { evil( '"use strict"; class A{};' ); bool = true; } catch ( err ) { // eslint-disable-line no-unused-vars bool = false; } return bool; } // EXPORTS // module.exports = hasClassSupport;