Nodejs Array Shuffle shuffle()

Here you can find the source of shuffle()

Method Source Code

Array.prototype.shuffle = function () {
            var self = this,
                n = self.length,
                i,// ww  w  . ja va2  s.  co  m
                j,
                tmp;

            for (i = n - 1; i > 0; i -= 1) {
                j = Math.floor(Math.random() * (i + 1));
                tmp = self[i];
                self[i] = self[j];
                self[j] = tmp;
            }
            return self;
        };
 
    function Random(range) {
        range = range || 1;
        return (Math.round(Math.random() * range));
    }

Related

  1. 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; 
    ...
    
  2. shuffle()
    Array.prototype.shuffle = function() {
      var array = this.slice();
      var current = this.length;
      var temp;
      var random;
      while(current !== 0) {
        random = Math.floor(Math.random() * current);
        current -= 1;
        temp = array[current];
    ...
    
  3. 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;
    
  4. shuffle()
    if(Array.prototype.shuffle === undefined) {
        Array.prototype.shuffle = function() {
            var counter = this.length;
            while (counter > 0) {
                var temp;
                var index;
                index = Math.floor(Math.random() * counter);
                counter--;
                temp = this[counter];
    ...
    
  5. 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;
    ...
    
  6. 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;
    };
    
  7. 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;
    };
    
  8. 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;
    };
    ...
    
  9. 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;
    function shuffle(array){
        return Array.prototype.shuffle.call(array)