JavaScript implements a method of array randomization

  • 2020-06-22 23:48:52
  • OfStack

An example of JavaScript shows how to implement array randomization. Share to everybody for everybody reference. Specific implementation methods are as follows:


function Shuffle(o) {
  for(var j, x, i = o.length; i; j = parseInt(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
  return o;
};

Usage:


var testArray = [1,2,3,4,5];
Shuffle(testArray);
// jQuery to dump out new values to element with ID of 'dump'
$(function() {
  for (var i=0;i<testArray.length;i++) {
   $("#dump").append(testArray[i]);
  }
});

Output results:

35214

I hope this article has been helpful for your javascript programming.


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