@ou-imdt/utils/lib/shuffle.js

Utility library for interactive media development

/**
 * Randomly shuffles an array.
 * @param {Array} a - The array to shuffle.
 * @returns {Array} The shuffled array.
 */
export default function shuffle(a) {
  var j; var x; var i;
  
  for (i = a.length; i; i--) {
    j = Math.floor(Math.random() * i);
    x = a[i - 1];
    a[i - 1] = a[j];
    a[j] = x;
  }
  return a;
}