Book Image

Getting Started with React

By : Doel Sengupta, Manu Singhal, Danillo Corvalan
Book Image

Getting Started with React

By: Doel Sengupta, Manu Singhal, Danillo Corvalan

Overview of this book

ReactJS, popularly known as the V (view) of the MVC architecture, was developed by the Facebook and Instagram developers. It follows a unidirectional data flow, virtual DOM, and DOM difference that are generously leveraged in order to increase the performance of the UI. Getting Started with React will help you implement the Reactive paradigm to build stateless and asynchronous apps with React. We will begin with an overview of ReactJS and its evolution over the years, followed by building a simple React component. We will then build the same react component with JSX syntax to demystify its usage. You will see how to configure the Facebook Graph API, get your likes list, and render it using React. Following this, we will break the UI into components and you’ll learn how to establish communication between them and respond to users input/events in order to have the UI reflect their state. You’ll also get to grips with the ES6 syntaxes. Moving ahead, we will delve into the FLUX and its architecture, which is used to build client-side web applications and complements React’s composable view components by utilizing a unidirectional data flow. Towards the end, you’ll find out how to make your components reusable, and test and deploy them into a production environment. Finally, we’ll briefly touch on other topics such as React on the server side, Redux and some advanced concepts.
Table of Contents (18 chapters)
Getting Started with React
About the Authors
About the Reviewers

Other ES (ECMAScript) versions in React

In the second half of this chapter, we will explore how React supports newer versions of ECMAScript. Until now, we have explored the different lifecycle methods in a React component. In this section of the chapter, we will dig into something different: how changes in the new version of ECMAScript have been adopted by React.


ES6 is the current version of the ECMAScript Language Specification Standard. Further details about the changes and the new things incorporated can be found on the Mozilla Development Network site:

Complete documentation for ES6 is beyond the scope of this book.

According to the Facebook documentation:

Starting with React 0.13.0 a transpiler allows us to use ES6 classes. JavaScript originally didn't have a built-in class system. The developer team wanted class creation using the idiomatic JavaScript style. Therefore instead of...