Replace all 0 in an Array with random numbers

Okey, folks so here it is, a solution to replace all the 0os in an array with a number. In the beginning I succeeded replace all 0 with the same number. But then i wanted to replace them with different values, all based on a random number. Here is the solution, written in Javascript:




var myData = [];
myData.push(5, 10, 0, 0, 0, 30, 0, 0, 0, 0);

//kanske används vid ett senare tilfälle 
var random = Math.floor((Math.random() * 100) + 1);
var random1 = Math.floor((Math.random() * 100) + 1);
var random2 = Math.floor((Math.random() * 100) + 1);


for(var i = 0; i < myData.length; i++){
  for(nollor in myData){
  if(myData[i] === 0){
    myData[i] = random;  
    random = Math.floor((Math.random() * 100) + 1);   
    myData[i] = random;



Write better jQuery!

Write better jQuery!

jQuery is a great framework that make our life easer when it comes to start writing javascript or manipulate the DOM.

The only problem is that because jQuery make everything easer some developer forget to write good jQuery, that is following almost the same good practices that developers should use when writing JavaScript.

A very simple example of this is the following:

$(“document”).ready(function() {


This is the most popular way to start using jQuery. If you don’t care about populating with globals variables or the loading performance is not a worry for you, this kind of code works for you.

But when you are working with bigger applications you don’t want that your variables gets globals and obviously you want the best performance for you app.

The solution is follow the best practices. The example above can be written like this:

(function($, window, document) {

// now $ is locally scoped

$(function() {

// the DOM is ready


}(window.jQuery, window, document));

Do you wanna know even more best practices? Take a look to this article, is a must to read: