time-to-botec

Benchmark sampling in different programming languages
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isInteger.js (669B)

      1 var toInteger = require('./toInteger');
      2 
      3 /**
      4  * Checks if `value` is an integer.
      5  *
      6  * **Note:** This method is based on
      7  * [`Number.isInteger`](https://mdn.io/Number/isInteger).
      8  *
      9  * @static
     10  * @memberOf _
     11  * @since 4.0.0
     12  * @category Lang
     13  * @param {*} value The value to check.
     14  * @returns {boolean} Returns `true` if `value` is an integer, else `false`.
     15  * @example
     16  *
     17  * _.isInteger(3);
     18  * // => true
     19  *
     20  * _.isInteger(Number.MIN_VALUE);
     21  * // => false
     22  *
     23  * _.isInteger(Infinity);
     24  * // => false
     25  *
     26  * _.isInteger('3');
     27  * // => false
     28  */
     29 function isInteger(value) {
     30   return typeof value == 'number' && value == toInteger(value);
     31 }
     32 
     33 module.exports = isInteger;