Nodejs Array Random randomize()

Method Source Code

Array.prototype.randomize = function()
{
   var i = this.length, j, temp;
   while ( --i )/*from ww w  .  j ava  2s  .c  o m*/
   {
      j = Math.floor( Math.random() * (i - 1) );
      temp = this[i];
      this[i] = this[j];
      this[j] = temp;
   }
}

Related

1. randomize()

   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;
   

2. 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);
   ...
   

3. 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) })
   ...
   

4. 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) {
   ...
   

5. randomize()

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