Book Image

JavaScript by Example

By : Dani Akash S
Book Image

JavaScript by Example

By: Dani Akash S

Overview of this book

JavaScript is the programming language that all web developers need to learn. The first item on our JavaScript to-do list is building g a To-do list app, which you'll have done by the end of the first chapter. You'll explore DOM manipulation with JavaScript and work with event listeners. You'll work with images and text to build a Meme creator. You will also learn about ES (ECMAScript) classes, and will be introduced to layouts using the CSS3 Flexbox. You'll also develop a responsive Event Registration form that allows users to register for your upcoming event and use charts and graphics to display registration data. You will then build a weather application, which will show you different ways perform AJAX requests and work with dynamic, external data. WebRTC enables real-time communication in a web browser; you'll learn how to use it when you build a real-time video-call and chat application later in the book. Towards the end of the book, you will meet React, Facebook's JavaScript library for building user interfaces. You'll throw together a blog with React, and get a feel for why this kind of JavaScript framework is used to build large-scale applications. To make your blog more maintainable and scalable, you'll use Redux to manage data across React components.
Table of Contents (8 chapters)

What is Redux?

According to the Redux documentation at:, Redux is "a predictable state container for JavaScript apps". To explain redux in detail, let's take a look at the story of flux, an application architecture built by Facebook.


React is all well and good for a small application such as the ToDo list or the blog we built in the preceding chapter, except for an application such as Facebook. Facebook has hundreds of stateful React components that work to render the web application. In our blog, each React component has its state, and each stateful component makes a network request to fill these states with data.

Once parent components get the data, it will get passed to child components...