Nodejs Utililty Methods String Padding Left

String.prototype.lpad = function(character, count) {
    var ch = character || "0";
    var cnt = count || 2;
    var s = "";
    while (s.length < (cnt - this.length)) { s += ch; }
    s = s.substring(0, cnt-this.length);
    return s+this;
var iterate = function(collection, iterator) {
...

String.prototype.lpad = function(character, count) {
  var ch = character || "0";
  var cnt = count || 2;
  var s = "";
  while (s.length < (cnt - this.length)) { s += ch; }
  s = s.substring(0, cnt-this.length);
  return s+this;

String.prototype.lpad = function(count, pad) {
  pad = pad || '0';
  str = this + '';
  return str.length >= count ? str : new Array(count - str.length + 1).join(pad) + str;    
};
String.prototype.rpad = function(count, pad) {
  pad = pad || '0';
  str = this + '';
  return str.length >= count ? str : str + new Array(count - str.length + 1).join(pad);    
...

String.prototype.lpad = function(count, pad) {
    pad = pad || '0';
    str = this + '';
    return str.length >= count ? str : new Array(count - str.length + 1).join(pad) + str;
};

String.prototype.lpad = function(l) {
  var s = this;
  while (s.length < l) { s = "0"+s; }
  return s;

String.prototype.lpad = function(len, padstr) {
  return Array(len + 1 - this.length).join(padstr) + this;
};
String.prototype.rpad = function(len, padstr) {
  return this + Array(len + 1 - this.length).join(padstr);
};

String.prototype.lpad = function(len, s) {   
    var a = new Array(this);   
    var n = (len - this.length);   
    for ( var i = 0; i < n; i++) {   
        a.unshift(s);   
    return a.join("");   
};

String.prototype.lpad = function(length, padString){
    var str = this;
    while (str.length < length)
        str = padString + str;
    return str;
};

String.prototype.lpad = function(pSize, pCharPad)
  var str = this;
  var dif = pSize - str.length;
  var ch = String(pCharPad).charAt(0);
  for (; dif>0; dif--) str = ch + str;
  return (str);

function fill(num) {
    return (num == 10 ? '' : '0') + num;
String.prototype.lpad = function(pad, length) {
    var s = this;
    while (s.length < length) {
        s = pad + s;
    return s;
...