Nodejs Utililty Methods Number to Hex Convert

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

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

Number.prototype.toHex = function() 
  try
    var val = this.valueOf();
    val = parseInt(val);
    val = Math.max(0,val);
    val = Math.min(val,255);
    val = Math.round(val);
...

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

"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;
...

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);
...

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

Number.prototype.toHexByte = function() {
    var s = this.toString(16).toUpperCase();
    if (s.length == 1) {
        s = "0" + s;
    return ">" + s;
};

Number.prototype.toHexByteShort = function() {
    var s = this.toString(16).toUpperCase();
    if (s.length == 1) {
        s = "0" + s;
    return s;
};

Number.prototype.toHexWord = function() {
    var s = this.toString(16).toUpperCase();
    while (s.length < 4) {
        s = "0" + s;
    return ">" + s;
};