Nodejs Array Random randomPick()

Method Source Code

Array.prototype.randomPick = function () {
    return this[Math.floor(Math.random()*this.length)];
};

Related

1. random(num, enableDuplicate)

   Array.prototype.random = function(num, enableDuplicate){
     var array = [];
     var duplicate;
     if(typeof duplicate === "undefined"){
       duplicate = false;
     else{
       duplicate = enableDuplicate;
     if(num <= this.length){
       var index;
       for(var i=0; i<num; i++){
         index = Math.floor(Math.random()*this.length);
         array.push(this[index]); 
         if(!enableDuplicate){
           this.splice(index, 1);
       return array;
   module.exports = Array;
   

2. randomElement()

   Array.prototype.randomElement = function () {
       return this[Math.floor(Math.random() * this.length)]
   

3. randomElement()

   function Weather() {
     this.currentWeather = ['stormy', 'sunny', 'sunny', 'sunny'].randomElement();
   Array.prototype.randomElement = function () {
     return this[Math.floor(Math.random() * this.length)];
   };
   

4. randomElement()

   Array.prototype.randomElement = function () {
       return this[Math.floor(Math.random() * this.length)]
   };
   function shuffle(array) {
     var currentIndex = array.length, temporaryValue, randomIndex ;
     while (0 !== currentIndex) {
       randomIndex = Math.floor(Math.random() * currentIndex);
       currentIndex -= 1;
       temporaryValue = array[currentIndex];
   ...
   

5. randomPick()

   Array.prototype.randomPick = function () {
       return this[_.random(this.length - 1)];
   };
   

6. randomPick()

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

7. randomRemove()

   Array.prototype.randomRemove = function () {
     return this.splice(Math.floor(Math.random() * this.length), 1)[0];
   

8. random_item()

   'use strict';
   Array.prototype.random_item = function () {
       return this[Math.floor(Math.random() * this.length)];
   };
   var printError = function (msg) {
       var newline = document.createElement('br');
       var content = document.createTextNode(msg);
       var messages = document.getElementById('messages');
       messages.appendChild(content);
   ...
   

9. randomise()

   Array.prototype.randomise = function() {
       return this.sort(function() { return 0.5 - Math.random() });