How to randomize subset of array in Javascript?

Question

What is the best way to randomize part of the array in Javascript

For example, if I have 100 items in the array, what is the fast and efficient way of randomizing set of

Answer 1

You can adjust the array shuffle method that is described here: http://jsfromhell.com/array/shuffle

It is based on Fisher-Yates (Knuth) algorithm (http://en.wikipedia.org/wiki/Fisher–Yates_shuffle).