main.js (1273B)
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 isFunction = require( './../../is-function' ); 24 var hasOwnProp = require( './../../has-own-property' ); 25 26 27 // MAIN // 28 29 /** 30 * Tests if a value is PRNG-like. 31 * 32 * @param {*} v - value to test 33 * @returns {boolean} boolean indicating if a value is PRNG-like 34 * 35 * @example 36 * var randu = require( '@stdlib/random/base/randu' ); 37 * 38 * var bool = isPRNGLike( randu ); 39 * // returns true 40 * 41 * bool = isPRNGLike( [] ); 42 * // returns false 43 */ 44 function isPRNGLike( v ) { 45 return ( 46 isFunction( v ) && 47 typeof v.NAME === 'string' && 48 hasOwnProp( v, 'state' ) && 49 hasOwnProp( v, 'seed' ) 50 ); 51 } 52 53 54 // EXPORTS // 55 56 module.exports = isPRNGLike;