Javascript String leftPad(character, totalLength)

/**/*from   w w w  . j a  v  a  2 s. c  o  m*/
 * Padding character to string until it reaches given length
 */
String.prototype.leftPad = function (character, totalLength) {
    var s = this;
    while (s.length < totalLength)
        s = character + s;
    return s;
}