Nodejs Array Random randomize()

Method Source Code

/**//  ww  w  .ja  va2 s . c  o m
 * @returns {array} New array with randomized items
 */
Array.prototype.randomize = Array.prototype.randomize || function() {
  var result = [];
  var clone = this.slice();
  while (clone.length) {
    var index = clone.indexOf(clone.random());
    result.push(clone.splice(index, 1)[0]);
  }
  return result;
}

Related

1. randomPick()

   Array.prototype.randomPick = function() {
     var index = Math.floor(Math.random() * this.length);
     return this[index];
   

2. randomRemove()

   Array.prototype.randomRemove = function () {
     return this.splice(Math.floor(Math.random() * this.length), 1)[0];
   

3. random_item()

   'use strict';
   Array.prototype.random_item = function () {
       return this[Math.floor(Math.random() * this.length)];
   };
   var printError = function (msg) {
       var newline = document.createElement('br');
       var content = document.createTextNode(msg);
       var messages = document.getElementById('messages');
       messages.appendChild(content);
   ...
   

4. randomise()

   Array.prototype.randomise = function() {
       return this.sort(function() { return 0.5 - Math.random() });
   

5. randomize()

   Array.prototype.randomize = function() {
     var result = [];
     while (this.length) {
       var index = this.indexOf(this.random());
       result.push(this.splice(index, 1)[0]);
     return result;
   

6. randomize()

   Array.prototype.randomize = function() {
       if (this.length < 2) {
           return this;
       var items = Array.from(this);
       var newArr = [];
       while (items.length > 0) {
           var entry = items.random();
           newArr.push(entry);
   ...
   

7. randomize()

   function range(from, to) {
     var result = []
     for(var i = from; i <= to; i++) {
       result.push(i)
     return result
   Array.prototype.randomize = function() {
     this.sort(function(){ return (Math.round(Math.random()) - 0.5) })
   ...
   

8. randomize()

   Array.prototype.randomize = function(){
     var size = this.length;
     var itensInArray = 0;
     var newArray = [];
     var emptyObject = {}; 
     this.forEach(function(){ newArray.push(emptyObject); }); 
     this.forEach(function(item){
       var index = Math.randomInt(0, size - 1);
       while(newArray[index] != emptyObject) {
   ...
   

9. randomize()

   Array.prototype.randomize = function() {
     this.sort(function() {
       return Math.floor(Math.random() * 2) ? -1 : 1;
     });
     return this;