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

This one is pretty efficient

String.prototype.repeat = function(times){
    var result="";
    var pattern=this;
    while (times > 0) {
        if (times&1)
            result+=pattern;
        times>>=1;
        pattern+=pattern;
    }
    return result;
};