if_else.js (1145B)
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 /** 22 * If a condition is truthy, returns `x`; otherwise, returns `y`. 23 * 24 * @param {boolean} bool - condition 25 * @param {*} x - value to return if a condition is truthy 26 * @param {*} y - value to return if a condition is falsy 27 * @returns {*} either `x` or `y` 28 * 29 * @example 30 * var randu = require( '@stdlib/random/base/randu' ); 31 * 32 * var z = ifelse( randu() > 0.5, 1.0, -1.0 ); 33 * // returns <number> 34 */ 35 function ifelse( bool, x, y ) { 36 if ( bool ) { 37 return x; 38 } 39 return y; 40 } 41 42 43 // EXPORTS // 44 45 module.exports = ifelse;