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

Redux React

Redux is a JavaScript library designed by Dan Abramov, which helps in containerization of the states for the JavaScript applications. As the application grows, the complexity rises due to the requirement of the back and forth state updatability between the model and the view. Redux came to the rescue to solve this crooked complex path of state mutation and asynchronism. Thus, it defines itself as an attempt to make predictable state mutations.

It can be used with React or any other view library. Some of the key points to be remembered while using Redux are as follows:

  • The state of the JavaScript application is stored entirely inside the same object tree inside a single store. Thus, even when the application grows, it's easier to debug. The development phase is also faster as the entire application state is in one place. The state is read only; there are only getters in the state and no setters as you are unable to write to this store.

  • Any change to the state can only be done by...