Nodejs Array Shuffle shuffle()

Here you can find the source of shuffle()

Method Source Code

Array.prototype.shuffle = function() {
  var m = this.length, i;
  while (m) {/*w ww  .  ja  va2s . c  o m*/
    i = (Math.random() * m--) >>> 0;
    [this[m], this[i]] = [this[i], this[m]]
  }
  return this;
};

Related

  1. shuffle()
    Array.prototype.shuffle = function() {
      var array = Object(this);
      return array.sort(function() {
        return Math.random() - 0.5;
      });
    };
    
  2. shuffle()
    Array.prototype.shuffle=function(){
       var l=this.length-1;
       for(var i=l; i>0; i--){
            var itemIndex=Math.floor(Math.random()*(i+1));
            var item=source[i];
         source[i] = source[itemIndex];
         source[itemIndex]=item;
       return source;
    ...
    
  3. shuffle()
    Array.prototype.shuffle = function (){
        for(var rnd, tmp, i=this.length; i; rnd=parseInt(Math.random()*i), tmp=this[--i], this[i]=this[rnd], this[rnd]=tmp);
    };
    
  4. shuffle()
    Array.prototype.shuffle = function() { 
        var arr = this, elm, inc, length = arr.length;
        while (length) {
            inc = Math.floor(Math.random() * length--);
            elm = arr[length];
            arr[length] = arr[inc];
            arr[inc] = elm;
        return arr; 
    ...
    
  5. shuffle()
    Array.prototype.shuffle =  function() {
        for (i = this.length - 1; i > 0; i--) {
            var temp = this[i];
            var random = Math.floor(Math.random() * (i + 1));
            this[i] = this[random];
            this[random] = temp;
        return this;
    };
    ...
    
  6. shuffle()
    Array.prototype.shuffle = function () {
        var newArr = [];
        for (var i = 0; i < this.length; i++) {
            var currElem = this[i];
            var rand = Math.floor(Math.random() * this.length);
            this[i] = this[rand];
            this[rand] = currElem;
        return this;
    ...
    
  7. shuffle()
    Array.prototype.shuffle = function() {
      var i = this.length
      var j
      var temp
      if (i > 1) {
        while (--i) {
          j = Math.floor(Math.random() * (i + 1))
          temp = this[i]
          this[i] = this[j]
    ...
    
  8. shuffle()
    Array.prototype.shuffle = function () {
        for (var i = this.length - 1; i > 0; i--) {
            var j = Math.floor(Math.random() * (i + 1));
            var tmp = this[i];
            this[i] = this[j];
            this[j] = tmp;
        return this;
    
  9. 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;
    };
    Array.prototype.filter_sort = function () {
      return this.sort(function(a,b){return a-b});
    };