Repeat String - Javascript

Question

What is the best or most concise method for returning a string repeated an arbitrary amount of times?

The following is my best shot so far:

function          


        

Answer 1

Simple method:

String.prototype.repeat = function(num) {
    num = parseInt(num);
    if (num < 0) return '';
    return new Array(num + 1).join(this);
}