javascript array rand [2]

javascript array rand [2]

Already did a straight function to get a random element from an array. It’s even easier as a prototype to extend the base Array object. Then you can just call the “random” method on any array.

<script type="text/javascript">//<![CDATA[
Array.prototype.random = function () {
  return this[ Math.floor( Math.random() * this.length ) ];
}

var stuff = new Array('ant', 'grasshopper', 'scorpion', 'frog');

for ( i = 0 ; i < 10; i++ ) {
  document.write( stuff.random() + ' ');
}
//]]>
</script>

You can also shuffle/randomize your whole array up front with the Fisher-‌Yates algorithm and here are other ways to extend the native Array class.

[close] Permanent link · http://querylog.com/q/javascript+array+rand+[2]

Suggested HTML for linking:
<a title="QueryLog: javascript array rand [2]" href="http://querylog.com/q/javascript+array+rand+[2]">javascript array rand [2]</a> Link preview: javascript array rand [2]

04 October 2006 · Internet & computing

The page found by the original query:
Randomize arrays in JavaScript with the Fi…