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


As the name aptly defines, Flux dispatchers dispatches the actions to the subsequent stores. Dispatchers can be called as a registry of callbacks. All the stores are registered with the dispatchers.

Some key points of dispatcher are the following:

  • There is only one dispatcher per app.

  • Dispatchers being used as a center for all the registered callbacks.

  • It functions as a broadcaster of all the actions to the stores. Dispatchers acts as a queue, which sequentially broadcasts the actions. This is different from generic pub-sub systems in the following two ways:

    1. Callbacks are not subscribed to particular events. Every payload is dispatched to every registered callback.

    2. Callbacks can be deferred in whole or part until other callbacks have been executed.

  • The dispatcher has the capability to invoke the callbacks in the order specified, and it waits for other updates (waitFor() method does that).

  • In the flux library (npm install flux) node_module, the register() and dispatch() methods are defined...