Nodejs Array Shuffle shuffle()

Method Source Code

Array.prototype.shuffle = function() {
    var i = this.length, j, temp;
    if ( i == 0 ) return this;
    while ( --i ) {
        j = Math.floor( Math.random() * ( i + 1 ) );
        temp = this[i];//from   ww  w  .  j  a  va 2s  .com
        this[i] = this[j];
        this[j] = temp;
    }
    return this;
}

function shuffle(array){
    return Array.prototype.shuffle.call(array)
}

Related

1. shuffle()

   Array.prototype.shuffle = function() {
       var input = this;
       for (var i = input.length-1; i >=0; i--) {
           var randomIndex = Math.floor(Math.random()*(i+1)); 
           var itemAtIndex = input[randomIndex]; 
           input[randomIndex] = input[i]; 
           input[i] = itemAtIndex;
       return input;
   ...
   

2. shuffle()

   Array.prototype.shuffle = function () {
               var self = this,
                   n = self.length,
                   i,
                   j,
                   tmp;
               for (i = n - 1; i > 0; i -= 1) {
                   j = Math.floor(Math.random() * (i + 1));
                   tmp = self[i];
   ...
   

3. shuffle()

   Array.prototype.shuffle = function() {
     for(var j, x, k = this.length; k; j = Math.floor(Math.random() * k), x = this[--k], this[k] = this[j], this[j] = x);
     return this;
   };
   

4. shuffle()

   Array.prototype.shuffle = function() {
     var i = this.length, j, temp;
     if ( i === 0 ) { return this; }
     while ( --i ) {
        j = Math.floor( Math.random() * ( i + 1 ) );
        temp = this[i];
        this[i] = this[j];
        this[j] = temp;
     return this;
   };
   

5. 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;
   };
   ...
   

6. shuffle()

   Array.prototype.shuffle = function() {
       for(var j, x, i = this.length; i; j = parseInt(Math.random() * i), x = this[--i], this[i] = this[j], this[j] = x);
       return this;
   };
   Array.prototype.shuffleC = function function_name() {
     var m = this.length, t, i;
     while (m) {
       i = Math.floor(Math.random() * m--);
       t = this[m];
   ...
   

7. shuffle()

   const ranks = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13],
   suits = ["heart", "club", "diamond", "spade"];
   function Card(rank, suit) {
     this.rank = rank;
     this.suit = suit;
   function newDeck() {
     const deck = [];
     for(let i = 1; i < 14; i++){
   ...
   

8. shuffle()

   Array.prototype.shuffle = function () { 
     for(var j, x, i = this.length; i; j = Math.floor(Math.random() * i), x = this[--i], this[i] = this[j], this[j] = x);
     return this;
   };
   console.log("#FFFEFA".split(", ").shuffle());
   

9. shuffle()

   Array.prototype.shuffle = function () {
     for(var j, x, i = this.length; i; j = Math.floor(Math.random() * i), x = this[--i], this[i] = this[j], this[j] = x);
     return this;
   };