integer.js (1168B)
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 PINF = require( '@stdlib/constants/float64/pinf' ); 24 var NINF = require( '@stdlib/constants/float64/ninf' ); 25 var isInt = require( '@stdlib/math/base/assert/is-integer' ); 26 27 28 // MAIN // 29 30 /** 31 * Tests if a number primitive is an integer value. 32 * 33 * @private 34 * @param {*} value - value to test 35 * @returns {boolean} boolean indicating if a number primitive is an integer value 36 */ 37 function isInteger( value ) { 38 return ( 39 value < PINF && 40 value > NINF && 41 isInt( value ) 42 ); 43 } 44 45 46 // EXPORTS // 47 48 module.exports = isInteger;