basant307/AI_Governance_Project

1var baseRandom = require('./_baseRandom');2 3/**4 * A specialized version of `_.shuffle` which mutates and sets the size of `array`.5 *6 * @private7 * @param {Array} array The array to shuffle.8 * @param {number} [size=array.length] The size of `array`.9 * @returns {Array} Returns `array`.10 */11function shuffleSelf(array, size) {12  var index = -1,13      length = array.length,14      lastIndex = length - 1;15 16  size = size === undefined ? length : size;17  while (++index < size) {18    var rand = baseRandom(index, lastIndex),19        value = array[rand];20 21    array[rand] = array[index];22    array[index] = value;23  }24  array.length = size;25  return array;26}27 28module.exports = shuffleSelf;29