Introducing JavaScript objects

Before starting this module, you should have some familiarity with HTML and CSS. You are advised to work through the Introduction to HTML and Introduction to CSS modules before starting on JavaScript.

You should also have some familiarity with JavaScript basics before looking at JavaScript objects in detail. Before attempting this module, work through JavaScript first steps and JavaScript building blocks.

Object basics

In the first article looking at JavaScript objects, we'll look at fundamental JavaScript object syntax, and revisit some JavaScript features we've already looked at earlier on in the course, reiterating the fact that many of the features you've already dealt with are in fact objects.

Object prototypes

Prototypes are the mechanism by which JavaScript objects inherit features from one another, and they work differently from inheritance mechanisms in classical object-oriented programming languages. In this article, we explore how prototype chains work.

Object-oriented programming

In this article, we'll describe some of the basic principles of "classical" object-oriented programming, and look at the ways it is different from the prototype model in JavaScript.

Classes in JavaScript

JavaScript provides some features for people wanting to implement "classical" object-oriented programs, and in this article, we'll describe these features.

Working with JSON data

JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax, which is commonly used for representing and transmitting data on the web (i.e., sending some data from the server to the client, so it can be displayed on a web page). You'll come across it quite often, so in this article, we give you all you need to work with JSON using JavaScript, including parsing the JSON so you can access data items within it, and writing your own JSON.

Object building practice

In previous articles we looked at all the essential JavaScript object theory and syntax details, giving you a solid base to start from. In this article we dive into a practical exercise, giving you some more practice in building custom JavaScript objects, which produce something fun and colorful — some colored bouncing balls.

Adding features to our bouncing balls demo

In this assessment, you are expected to use the bouncing balls demo from the previous article as a starting point, and add some new and interesting features to it.

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