Nodejs Array Get Random getRandom()

Method Source Code

Array.prototype.getRandom = function() {
  return this[Math.random()*this.length|0];
}

Related

1. getRand()

   Array.prototype.getRand = function () {
       var rand = Math.floor(Math.random() * (this.length - 0)) + 0;
       return this[rand];
   

2. getRandom()

   Array.prototype.getRandom = function(){
     var result = this[Math.floor(Math.random()*this.length)];
     return result;
   

3. getRandomArrayItem()

   function shuffleArray(array) {
     for (var i = array.length - 1; i > 0; i--) {
       var j = Math.floor(Math.random() * (i + 1));
       var temp = array[i];
       array[i] = array[j];
       array[j] = temp;
     return array;
   Array.prototype.getRandomArrayItem = function() {
     return this[Math.floor(Math.random()*this.length)];
   

4. getRandomElement()

   Array.prototype.getRandomElement = function() {
     var i = getRandBetween(0, this.length-1);
     return this[i];
   function getRandBetween(lo, hi) {
     return parseInt(Math.floor(Math.random()*(hi-lo+1))+lo);
   

5. getRandomIndex()

   Array.prototype.getRandomIndex = function(){
       return Math.floor(Math.random()*this.length);