Nodejs Array Shuffle shuffle()

Here you can find the source of shuffle()

Method Source Code

"use strict"//from   w  w  w. j a v a 2s.  c o m

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;
};

Related

  1. 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;
    };
    
  2. shuffle()
    Array.prototype.shuffle = function() {
      let input = this;
      for (let i = input.length - 1; i >= 0; i--) {
        let randomIndex = Math.floor(Math.random() * (i + 1));
        let itemAtIndex = input[randomIndex];
        input[randomIndex] = input[i];
        input[i] = itemAtIndex;
      return input;
    ...
    
  3. shuffle()
    Array.prototype.shuffle =  function() {
      var i, j, t;
      for (i = 1; i < this.length; i++) {
        j = Math.floor(Math.random()*(1+i));  
        if (j != i) {
          t = this[i];                        
          this[i] = this[j];
          this[j] = t;
    
  4. 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;
    ...
    
  5. shuffle()
    Array.prototype.shuffle = function () {
        var i = this.length, j, temp;
        while (--i>0) {
            j=Math.floor(Math.random() * (i+1));
            temp=this[j];
            array[j]=this[i];
            array [i] = temp;
      return this;
    ...
    
  6. 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;
    };
    
  7. shuffle()
    Array.prototype.shuffle = function() {
        return this.sort(function() {
           return Math.random() - 0.5;
        });
    };
    
  8. shuffle()
    Array.prototype.shuffle = function() {
       var len = this.length;
      var i = len;
       while (i--) {
         var p = parseInt(Math.random()*len);
        var t = this[i];
        this[i] = this[p];
        this[p] = t;
    };
    
  9. shuffle()
    Array.prototype.shuffle = function() {
      var l = this.length + 1;
      while (l--) {
        var r = ~~(Math.random() * l);
        var o = this[r];
        this[r] = this[0];
        this[0] = o;
      return this;
    ...