Nodejs Number Type Check isInteger()

Here you can find the source of isInteger()

Method Source Code

Number.prototype.isInteger = function () {
    "use strict";
    var ans = false;
    if (this % 1 == 0) {
        ans = true;//www. java  2 s  .c om
    }
    return ans;
};

Related

  1. isInt()
    Number.prototype.isInt = function() {
      return parseFloat(this) == parseInt(this, 10) && !isNaN(this);
    };
    
  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;
    ...
    
  5. isNumber()
    Number.prototype.isNumber = function()
      try
        var value = this.toString();
        value = value.replace(",","");
          if (parseFloat(value)!= value)
            return false;
          else
    ...