Here you can find the source of rpad(padString, length)
//pad strings on the right String.prototype.rpad = function(padString, length) { var str = this; while (str.length < length) str = str + padString;//from ww w .j a v a 2s . c o m return 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); };
'use strict'; String.prototype.rpad = function(padString, length) { var str = this; while (str.length < length) { str = str + padString; return str; };
String.prototype.rpad = function(padString, length) { var str = this; while(str.length < length) str = str + padString; return str;
String.prototype.rpad = function(padString, length) { var str = this; while (str.length < length){ str = str + padString; return str;
String.prototype.rpad = function(padString, length) { var str = this; while (str.length < length) str = str + padString; return str; };
String.prototype.rpad = function(pad_str, length) { var str = this; while (str.length < length) str = str + pad_str; return str;