ulfben

Array Shuffle (KFA)

Dec 7th, 2015
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  1. //http://blog.codinghorror.com/the-danger-of-naivete/
  2. //Knuth-Fisher-Yates shuffle
  3. function shuffle(array:Array):Array
  4. {
  5.     var m:int = array.length;
  6.     var t:*;
  7.     var i:int;
  8.    
  9.     while (m){ // While there remain elements to shuffle…
  10.         i = Math.floor(Math.random() * m--);     // Pick a remaining element…
  11.         t = array[m]; // And swap it with the current element.
  12.         array[m] = array[i];
  13.         array[i] = t;
  14.     }
  15.     return array;
  16. }
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