try2valueof.js (1095B)
1 /** 2 * @license Apache-2.0 3 * 4 * Copyright (c) 2021 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 // MAIN // 22 23 /** 24 * Attempts to call a `BigInt` method. 25 * 26 * @private 27 * @param {*} value - value to test 28 * @returns {boolean} boolean indicating if able to call a `BigInt` method 29 */ 30 function test( value ) { 31 try { 32 return ( 33 // Objects created via `Object.create( null )` have no `valueOf()` method: 34 typeof value.valueOf() === 'bigint' 35 ); 36 } catch ( err ) { // eslint-disable-line no-unused-vars 37 return false; 38 } 39 } 40 41 42 // EXPORTS // 43 44 module.exports = test;