Nodejs Number to Hex Convert toHex()

Method Source Code

Number.prototype.toHex = function() 
{
   try// www.  j a  v  a  2s  . c  o m
   {
      var val = this.valueOf();
      val = parseInt(val);
      val = Math.max(0,val);
      val = Math.min(val,255);
      val = Math.round(val);
      return "0123456789ABCDEF".charAt((val-val%16)/16) + "0123456789ABCDEF".charAt(val%16)
   }
   catch(error)
   {
      throw new TypeError("must be a number!")
   }
};

Related

1. toHex()

   Number.prototype.toHex = function() {
     var hex = this.toString(16);
     if (hex.length == 1) {
       hex = "0" + hex;
     return hex;
   

2. toHex()

   Number.prototype.toHex = function () {
     var upper = (this.valueOf() >> 4) & 0x0F,
       lower = this.valueOf() & 0x0F;
     return upper.toString(16) + lower.toString(16);
   };
   

3. toHex()

   Number.prototype.toHex = function() {
     if (this < 16) {
       return '0' + this.toString(16); 
     return this.toString(16);
   

4. toHex(len)

   "use strict";
   Number.prototype.toHex = function(len) {
       var str = this.toString(16);
       str = str.toUpperCase();
       str = str.substr(0, len);
       while(str.length < len) {
           str = "0" + str;
       return str;
   ...
   

5. toHex(length)

   Number.prototype.toHex = function(length) {
     var str = this.toString(16);
     while (str.length < length)
       str = '0' + str;
     str = str.toUpperCase();
     return str;
   };
   Number.prototype.toChar = function() {
     return String.fromCharCode(this);
   ...
   

6. toHex(offset)

   Number.prototype.toHex = function (offset) {
     return this.toString(16).toUpperCase()
   };