Book Image

React and React Native

By : Adam Boduch
Book Image

React and React Native

By: Adam Boduch

Overview of this book

para 1: Dive into the world of React and create powerful applications with responsive and streamlined UIs! With React best practices for both Android and iOS, this book demonstrates React and React Native in action, helping you to create intuitive and engaging applications. Para 2: React and React Native allow you to build desktop, mobile and native applications for all major platforms. Combined with Flux and Relay, you?ll be able to create powerful and feature-complete applications from just one code base. Para 3: Discover how to build desktop and mobile applications using Facebook?s innovative UI libraries. You?ll also learn how to craft composable UIs using React, and then apply these concepts to building Native UIs using React Native. Finally, find out how you can create React applications which run on all major platforms, and leverage Relay for feature-complete and data-driven applications. Para 4: What?s Inside ? Craft composable UIs using React & build Native UIs using React Native ? Create React applications for major platforms ? Access APIs ? Leverage Relay for data-driven web & native mobile applications
Table of Contents (34 chapters)
React and React Native
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Dedication
Preface

Synthetic event objects


When you attach an event handler function to a DOM element using the native addEventListener() function, the callback will get an event argument passed to it. Event handler functions in React are also passed an event argument, but it's not the standard Event instance. It's called SyntheticEvent, and it's a simple wrapper for native event instances.

Synthetic events serve two purposes in React:

  • Provides a consistent event interface, normalizing browser inconsistencies with regard to event properties

  • Synthetic events contain information that's necessary for propagation to work

Here's an illustration of the synthetic event in the context of a React component:

In the next section, you'll see how these synthetic events are pooled for performance reasons and the implications of this for asynchronous code.