Get up to 60 % extra points for free! More info

Lesson 15 - Anonymous Objects And Prototypes In JavaScript

In the previous lesson, Encapsulation In JavaScript, we looked at encapsulation. In today's JavaScript tutorial, we're going to go over the promised prototypes that we've successfully avoided until now. Today, we're finally going to understand how OOP in JavaScript works under the hood, learn to read older source codes (which you'd encounter sooner or later anyway :) ), and we'll be able to debug our code better by fully understanding its structure. We're going to learn to extend already existing classes and use new operators.

Creating Objects In JavaScript

Objects are fundamental JavaScript components. Virtually everything in JavaScript can be perceived as an object. We can create objects by ourselves. There are several ways to do it. We should be aware how they work at least to be able to read others' source codes. Let's introduce JavaScript objects in depth.

new Object()

The first way is to use new Object() to create a new empty object. We already know that we can add properties and methods to JavaScript objects freely, even they've been already created, although this is not a good practice. Let's try this approach:


 

...End of the preview...
Continue further

You will gain knowledge worth hundreds of thousands for a few crowns

You've come here and that's great! We believe that the first lessons showed you something new and useful
Do you want to continue the course? Go to the premium section.

Limited offer: Learn all knowledge and save money

Buy lessons and exercise submitting one by one 80 points
Buy all currently available lessons with exercise submitting and other features for an exclusive price 68 points ($6.12)
Currently, you have 0 points
By buying this exclusive package, you'll have access to all 18 lessons in this course including exercise submitting while saving $1.08. This offer is limited for the first lessons only with an additional exclusive 15% discount.
You gain 68 points for adding an article to the site, or for $7.20 $6.12

Warning, by buying just this lesson you'll lose the limited 15% discount for the package of all the lessons.

Buy only the lesson 10 points
Currently, you have 0 points
You gain 10 points for adding an article to the site, or for $0.90

This article is licensed: Premium, by buying this article, you agree with the terms of use.

What will you get from us in the next lessons?
  • Unlimited and permanent access to individual lessons.
  • High quality IT knowledge.
  • Skills to help you get your dream and well-paid job.

Article description

Requested article covers this content:

In this JavaScript tutorial, we'll explain how to create anonymous objects and prototypes to be able to read older programs and debug code better.

You gain points by supporting our network. This is done by sending a helpful amount of money to support the site, or by creating content for the network.

Article has been written for you by Drahomir Hanak
Avatar
Activities (4)