Nodejs Array Shuffle shuffle()

Method Source Code

Array.prototype.shuffle = function () {
    var c = this.slice(0);

    for (var j, x, i = this.length; i; j = parseInt(Math.random() * i), x = this[--i], this[i] = this[j], this[j] = x);

    if (this.compare(c)) {
        this.shuffle();//from www .j  a va2  s .co  m
    }

    return this;
}; // Arr.shuffle();

Related

1. shuffle()

   Array.prototype.shuffle = function() {
     var currentIndex = this.length, temporaryValue, randomIndex;
     while (0 !== currentIndex) {
       randomIndex = Math.floor(Math.random() * currentIndex);
       currentIndex -= 1;
       temporaryValue = this[currentIndex];
       this[currentIndex] = this[randomIndex];
       this[randomIndex] = temporaryValue;
     return this;
   

2. shuffle()

   Array.prototype.shuffle = function() {
      var i = this.length;
        while (--i) {
           var j = Math.floor(Math.random() * (i + 1));
           var temp = this[i];
           this[i] = this[j];
           this[j] = temp;
      return this;
   ...
   

3. shuffle()

   Array.prototype.shuffle=function() {
     var i=this.length,j,t;
     while(i--) {
       j=Math.floor((i+1)*Math.random());
       t=arr[i];
       arr[i]=arr[j];
       arr[j]=t;
   

4. shuffle()

   Array.prototype.shuffle = function () {
     var i = this.length,
       j, t;
     var arr = this;
     while (i--) {
       j = Math.floor((i + 1) * Math.random());
       t = arr[i];
       arr[i] = arr[j];
       arr[j] = t;
   ...
   

5. shuffle()

   Array.prototype.shuffle = function() {
       for (var j, x, i = this.length - 1; i; j = randomNumber(i), x = this[--i], this[i] = this[j], this[j] = x);
       return this;
   };
   

6. shuffle()

   Array.prototype.shuffle = function(){
     var counter = this.length, temp, index;
       while (counter > 0){
         index = Math.floor(Math.random() * counter);
         counter--;
         temp = this[counter];
         this[counter] = this[index]
         this[index] = temp;
       };
   ...
   

7. shuffle()

   Array.prototype.shuffle = function(){
     var counter = this.length, temp, index;
     while (counter > 0) {
       index = (Math.random() * counter--) | 0;
       temp = this[counter];
       this[counter] = this[index];
       this[index] = temp;
     return this;
   ...
   

8. shuffle(b)

   function random(min, max) 
     return Math.floor(Math.random() * (max - min + 1)) + min; 
   };
   function getRandomColor()
     return 'rgb(' + random(0, 255) + ', ' + random(0, 255) + ', ' + random(0, 255) + ')';
   };
   function generateRandomSymbols()
   ...
   

9. shuffle(maxLength)

   Array.prototype.shuffle = function (maxLength) {
       var currentIndex = this.length
       var temporaryValue;
       var randomIndex;
       var result;
       maxLength = maxLength || this.length
       while (0 !== currentIndex) {
         randomIndex = Math.floor(Math.random() * currentIndex);
         currentIndex -= 1;
   ...