shuffler

Benchmark created by Sean on October 5, 2011

Description

Preparation HTML

<script>
  var modernExample = function() {
      var arr = generateRandomArray(),
          j, tmp;
      for (var i = arr.length - 1; i > 0; i--) {
        // get a random number between 0 & i
        j = randomNum(0, i);
        // do the switchero
        tmp = arr[j];
        arr[j] = arr[i];
        arr[i] = tmp;
      }
      return arr;
      },
      msShuffleExample = function() {
      var arr = generateRandomArray(),
          tmp, len = arr.length;
      while (len) {
        c = Math.floor(Math.random() * len);
        tmp = arr[--len];
        arr[len] = arr[c];
        arr[c] = tmp;
      }
      return arr;
      },
      generateRandomArray = function() {
      var arr = [],
          num;
      for (var i = 0; i < 25; i++) {
        num = parseInt(Math.random() * (999 - 1) + 1, 10);
        if (num) {
          arr.push(num);
        }
      }
      return arr;
      },
      
      
      //function to get random number upto m
      randomNum = function(minVal, maxVal) {
      var randVal = minVal + (Math.random() * (maxVal - minVal));
      return Math.round(randVal);
      };
</script>

Test runner

modernExample();

msShuffleExample();

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

• Revision 1: published by Sean on October 5, 2011