Nodejs Number Calculate doubleDigitalize()

Method Source Code

"use strict";/*from ww  w  .j  ava 2  s  . c  o  m*/

// Turns a single digit number to a double digit string
Number.prototype.doubleDigitalize = function() {
   const numberString = this.toString();
   return numberString.length < 2 ? "0" + numberString : numberString;
};

Related

1. decorateFloat(decimals, decSeparator)

   Number.prototype.decorateFloat = function (decimals, decSeparator) {
     if(decSeparator == undefined)
       decSeparator = '.';
     var price = this;
     var decPattern = '';
     for(var i = 0; i < decimals; i++)
       decPattern += '0';
     price = price.roundFloat(decimals);
     var split = price.toString().split('.');
   ...
   

2. digits()

   Number.prototype.digits = function() {
       return (Math.floor(this)+"").replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1,");
   };
   

3. discountPercentage(val)

   Number.prototype.discountPercentage = function(val){
     return this - this.percentage(val);
   };
   

4. div10()

   Number.prototype.div10 = function () {
     return this/10;
   Object.prototype.say = function (s) {
    console.log('I say ' + s);
   var o = {};
   o.say("Hello");
   var n = 120;
   ...
   

5. double()

   Number.prototype.double = function() {
     return this * 2;
   };
   

6. equals(another)

   Number.prototype.equals = function (another) {
       return this - another === 0;
   };
   

7. exp()

   Number.prototype.exp = function() {
     return Math.exp(this);
   };
   

8. fe(x)

   Number.prototype.fe = function(x)
     var s = x.toString();
     var point = s.search(/\./);
     if (point == -1)
       return (Math.abs(this - x) < 0.5);    
     else
   ...
   

9. fillZero(len)

   Number.prototype.fillZero = function (len)
     var s = this.toString(10);
     while (s.length<len) s = "0" + s;
     return s;