Welcome to the learn-js.org interactive JavaScript tutorial. Whether you are an experienced programmer or not, this website is intended for everyone who wishes to learn the JavaScript …

learn-js.org is a free interactive JavaScript tutorial for people who want to learn JavaScript, fast.

learn-js.org is a free interactive JavaScript tutorial for people who want to learn JavaScript, fast.

In JavaScript, functions are a very important feature of the program, and especially the fact that they can access local variables of a parent function (this is called a closure). There are two …

Splicing arrays in JavaScript removes a certain part from an array to create a new array, made up from the part we took out. For example, if we wanted to remove the five numbers from the …

learn-js.org is a free interactive JavaScript tutorial for people who want to learn JavaScript, fast.

JavaScript can hold an array of variables in an Array object. In JavaScript, an array also functions as a list, a stack or a queue. To define an array, either use the brackets notation or the Array …

Like almost every dynamic language, JavaScript is a "duck-typed" language, and therefore every variable is defined using the var keyword, and can contain all types of variables. We can …

In this tutorial, we will learn how to use objects as a data structure. The advanced tutorials explain more about object oriented JavaScript. To initialize an object, use curly braces:

Object Oriented JavaScript. JavaScript uses functions as classes to create objects using the new keyword. Here is an example: