Nodejs Array Shuffle shuffle()

Here you can find the source of shuffle()

Method Source Code

/**/*from   w  w w .ja  v a 2s.com*/
 * Shuffles the items in an array.
 * Source: http://stackoverflow.com/a/10142256/710630
 *
 * @returns {Array}
 */
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;
};

Related

  1. shuffle()
    Array.prototype.shuffle = function() {
        var i = this.length, j, temp;
        while(--i>=0) {
            j=Math.floor(Math.random() * (i+1));
            temp = this[j];
            this[j] = this[i];
            this[i] = temp;
        return this;
    ...
    
  2. shuffle()
    Array.prototype.shuffle = function() {
        var swapbucket = this.length, randomelem, tempswap, tempelem;
        while (swapbucket--) {
            randomelem = Math.floor(Math.random() * (swapbucket + 1));
            tempelem = this[randomelem];
            tempswap = this[swapbucket];
            this[randomelem] = tempswap;
            this[swapbucket] = tempelem;
    
  3. shuffle()
    Array.prototype.shuffle = function() {
        var counter = this.length, temp, index;
        while (counter--) {
            index = (Math.random() * counter) | 0;
            temp = this[counter];
            this[counter] = this[index];
            this[index] = temp;
    };
    ...
    
  4. shuffle()
    Array.prototype.shuffle=function(){
      var i=this.length;
      if (i==0) return;
      while (--i){
        var rand=Math.floor(Math.random()*(i+1));
        tempI=this[i];
        tempRand=this[rand];
        this[i]=tempRand;
        this[rand]=tempI;
    ...
    
  5. shuffle()
    Array.prototype.shuffle = function(){
        var index1 = this.length, index2, temporary;
        while (--index1 > 0){
            index2 = Math.floor(Math.random() * (index1 + 1));
            temporary = this[index2];
            array[index2] = this[index1];
            array[index1] = temporary;
        return this;
    ...
    
  6. shuffle()
    Array.prototype.shuffle = function (){
        var temp,
        rand,
        round = Math.floor((Math.random() * (this.length*2)) + this.length);
        for (var i =0 ; round> i ; i++){
            rand = Math.floor(Math.random() * this.length);
            temp = this[rand];
            this.splice(rand, 1);
            this.push(temp);
    ...
    
  7. shuffle()
    Array.prototype.shuffle = function(){
        var index1 = this.length, index2, temporary;
        while (--index1 > 0){
            index2 = Math.floor(Math.random() * (index1 + 1));
            temporary = this[index2];
            array[index2] = this[index1];
            array[index1] = temporary;
        return this;
    ...
    
  8. 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;
    ...
    
  9. shuffle()
    Array.prototype.shuffle = function() {
      for (var i = this.length - 1; i > 0; i--) {
        var num = Math.floor(Math.random() * (i + 1)),
          d = this[num];
        this[num] = this[i];
        this[i] = d;
      return this;
    };
    ...