Nodejs Number Type Check isInt()

Method Source Code

/**//from w  w  w  .j  av a2s  .  co m
 * Returns true if the number is an integer and false if its Number.NaN or a floating point number
 */
Number.prototype.isInt = function() {
   return parseFloat(this) == parseInt(this, 10) && !isNaN(this);
};

Related

1. isInteger()

   Number.prototype.isInteger = function () {
       "use strict";
       var ans = false;
       if (this % 1 == 0) {
           ans = true;
       return ans;
   };
   

2. isInteger()

   Number.prototype.isInteger = function(){
     var ans = false;
     if(this%1==0){
       ans = true;
     return ans;
   };
   

3. isInteger()

   Number.prototype.isInteger = function(){
     var ans = false;
     if(this % 1 == 0){
       ans = true
     return ans;
   

4. isNumber()

   var assert=require('assert');
   var Number=function(number){
       this.number = number;
   Number.prototype.isNumber=function(){
       return isNaN(this.number);
   Number.prototype.isEven=function(){
       return this.number%2==0;
   ...