Array.prototype.shuffle = function(){
return this.sortBy(Math.random);
}
Note that the above has a (near impossible) chance to result in an
endless loop.
Best,
Thomas
Am 24.05.2007 um 19:09 schrieb Martin Ström:
>
> Here's a shorter version (wont change the current array but return a
> new, shuffled, copy:
>
> Object.extend(Array.prototype, {
> shuffle: function() {
> return this.sort(function() {
> return Math.floor(Math.random() * 3 -1);
> });
> }
> });
>
> /Martin
>
>
> On 5/24/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>>
>> I needed to shuffle an array, but there was no method so I made one.
>> Maybe this could be added? I have tested it only on Firefox.
>> Array.prototype.shuffle = function() {
>> var j = null // random index from i to last
>> for (var i=0; i < this.length; ++i) {
>> j = Math.floor(Math.random()*(this.length-i)) + i
>> var tmp = this[i]
>> this[i] = this[j]
>> this[j] = tmp
>> }
>> return this
>> }
>>
>>
>>>
>>
>
>
> --
> burnfield.com/martin
>
> >
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