main.js (1285B)
1 /** 2 * @license Apache-2.0 3 * 4 * Copyright (c) 2018 The Stdlib Authors. 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 'use strict'; 20 21 // MODULES // 22 23 var hasAsyncIteratorSymbolSupport = require( '@stdlib/assert/has-async-iterator-symbol-support' ); // eslint-disable-line id-length 24 25 26 // MAIN // 27 28 /** 29 * Async iterator symbol. 30 * 31 * @name AsyncIteratorSymbol 32 * @constant 33 * @type {(symbol|null)} 34 * 35 * @example 36 * if ( AsyncIteratorSymbol === null ) { 37 * console.log( 'Environment does not support Symbol.asyncIterator.' ); 38 * } else { 39 * console.log( 'Environment does support Symbol.asyncIterator.' ); 40 * } 41 */ 42 var AsyncIteratorSymbol = ( hasAsyncIteratorSymbolSupport() ) ? Symbol.asyncIterator : null; // eslint-disable-line max-len 43 44 45 // EXPORTS // 46 47 module.exports = AsyncIteratorSymbol;