Shuffle an array as many as possible

Question

I have an array like this

[0,2,3]

The possible shuffling of this array are

[0,2,3], [2,3,0], [3,0,2], [3,2,0], [0,3,2],         


        

Answer 1

this one's cuter (but the output from the other example is much clearer): http://jsfiddle.net/wCnLf/

function shuffle(list) {
    var shufflings = [];
    while(true) {
        var clone = list.slice();
        var shuffling = [];
        var period = 1;
        while(clone.length) {
            var index = Math.floor(shufflings.length / period) % clone.length;
            period *= clone.length;
            shuffling.push(clone.splice(index,1)[0]);
        }
        shufflings.push(shuffling);
        if(shufflings.length == period) return shufflings;
    }
}

and of course it still outputs all possible "shuffles"

console.log(shuffle(['a', 'b', 'c', 'd', 'e']));