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Fedosejev Artemij. - React.js Essentials

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Fedosejev Artemij. React.js Essentials

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Packt Publishing, 2015. 208 p. ISBN: 978-1-78355-162-0.
.A fast-paced guide to designing and building scalable and maintainable web apps with React.js.Building web applications with maintainable and performant user interfaces is a challenge that many have faced for more than a decade, but no one has risen to this challenge quite like React.js. Today React.js is used by Facebook, Instagram, Khan Academy, and Imperial College London, to name a few. Many new users recognize the benefits of React.js and adopt it in their own projects, forming a fast-growing community. The speed at which React.js has evolved promises a bright future for those who invest in learning it today.React.js Essentials will take you on a fast-paced journey through building your own maintainable React.js application. Begin by exploring how you can create single and multiple user interface elements. Create stateless and stateful components and make them reactive, learn to interact between your components and lifecycle methods and gauge how to effectively integrate your user interface components with other JavaScript libraries. Delve deep into the core elements of the Flux architecture and learn how to manage your application using stores. Finish by going that extra mile with the Jest test framework, running multiple tests on your application and find solutions to scale it further without complexity.What You Will Learn:
Install powerful React.js tools to make development much more efficient;
Create React elements with properties and children;
Get started with stateless and stateful React components;
Use JSX to speed up your React.js development process;
Add reactivity to your React components with lifecycle methods;
Integrate your React components with other JavaScript libraries;
Utilize the Flux application architecture with your React components;
Test your React components with Jest test framework.Build maintainable and performant user interfaces for your web applications using React.js.
Create reusable React.js components to save time and effort in maintaining your user interfaces.
Learn how to build a ready-to-deploy React.js web application, following our step-by-step tutorial.Who This Book Is For:
If youre a front-end developer with knowledge of jQuery and its libraries, along with frameworks, such as Angular.JS and Backbone.JS, or native JavaScript development, and you wish to use the fastest web user interface library there is, then this book is ideal for you.

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React.js Essentials

React.js Essentials

Copyright 2015 Packt Publishing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

First published: August 2015

Production reference: 1250815

Published by Packt Publishing Ltd.

Livery Place

35 Livery Street

Birmingham B3 2PB, UK.

ISBN 978-1-78355-162-0

www.packtpub.com

Credits

Author

Artemij Fedosejev

Reviewers

Denis Radin

Sander Spies

Konstantin Tarkus

Commissioning Editor

Dipika Gaonkar

Acquisition Editor

Nikhil Karkal

Content Development Editor

Pooja Nair

Technical Editor

Pramod Kumavat

Copy Editor

Rashmi Sawant

Project Coordinator

Bijal Patel

Proofreader

Safis Editing

Indexer

Priya Sane

Graphics

Sheetal Aute

Production Coordinator

Shantanu N. Zagade

Cover Work

Shantanu N. Zagade

Foreword

Are you tired of writing jQuery callback soup? Does your blood boil when you need to write yet another template or configuration in your Angular app? Wondering why your application structure is so complex? If so, React.js is what you've been looking for. The declarative nature of React.js will help you build a UI for large applications with data that changes over time.

As a professional iOS and JavaScript frontend consultant, I always recommend that clients use the best technology available. With the latest push from Facebook, React.js has proven itself to be a solid choice to build maintainable and performant user interfaces that help our clients ship products and move fast. I was excited the moment I heard about React.js Essentials and even more excited about getting my hands on a copy.

Artemij Fedosejev, a veteran web developer and technical lead at a start-up company in London, demonstrates why a declarative programming style and one-way reactive data flow is often the best way to solve real-life programming problems. Whether you're working with consumer-facing applications or university research, React.js helps you build frontend UIs on both small and large scales. You'll never be lost in code again. Learn from Artemij's real-world experience in React.js Essentials , and you'll be creating user interfaces without increasing the complexity of your web application in no time.

This book has everything you need to get started with React.js. It guides you from the first steps down to the intricacies of Jest. The best way to learn is by doing, and throughout this book, you will work on a hands-on React.js project and learn how to build an application that receives and collects the latest photos from Twitter.

Software is constantly evolving and always moving forward. As developers, while practicing our craft, we always reach out to new horizons that stretch and improve our understanding of how great software should be built. Historically, software development and architecture has gone from structured programming to imperative programming. This made way for object-oriented programming (OOP) to become the de facto standard of software development today. Languages such as Java, Ruby, Objective-C, and many others have been built with the OOP paradigm in mind.

However, there was one rebel that embraced functional programming and it has gone down its own evolutionary path, which is JavaScript. React.js is a manifestation of this renewed way of thinking: "UI as a function of state." Facebook has put in a lot of effort into making the reactive approach accessible to us through its library. Unlike other popular frameworks that use templating systems, such as Ember.js and Angular.js, React.js is a UI library that uses a declarative style of programming to describe the UI state. You can think of React.js as the V in the conventional MVC architecture pattern, but it doesn't stop there. Facebook introduced Flux, a complementary application architecture that uses React's composable view components.

The latest approaches to solving programming problems have come full circle and are back to declarative programming. The rise of new paradigms, such as Reactive Extensions (Rx), Futures, and Promises, brings us back to thinking in terms of functions and using a declarative approach instead of OOP's imperative style. React.js incorporates some of these paradigms and React.js Essentials is your first step down this path, and I think you'll like where it takes you!

Alex Bush

Founder and Software Product Engineer at SmartCloud, Inc.

About the Author

Artemij Fedosejev is a technical lead living in London, United Kingdom. He is a self-taught web developer who has been a web developer since the early 2000s. Artemij earned his BSc in computer science from University College Cork, Ireland. He participated in the IGNITE Graduate Business Innovation Programme, where he built and launched a website that received the Most Innovative Project award.

After graduation, Artemij moved to London to help local start-up companies build their products. He worked with JavaScript, Node.js, HTML5, CSS3, and other modern web technologies. After gaining some experience in the start-up industry, Artemij was presented with an opportunity to join Imperial College, London, work on a research and development, project and take leadership in creating frontends for a couple of web applications in the public health space. He played a key role in creating frontend architecture using React.js and Flux for WGSA.net and Microreact.org. Artemij created a number of open source projects such as Snapkite Engine, Snapkite Stream Client, and other projects, which can be found on his GitHub account at https://github.com/fedosejev. He is also the author of the http://react.tips website.

I am deeply grateful to my family, who have always supported me in my efforts. With their love and dedication, I have always been able to focus on learning new things and, now, teaching them to others. Special thanks to Alex Bush for constantly expanding the way I think about software development. Also, this book would have been much harder to write without the support of Dr. David Aanensen and Mirko Menegazzo. And finally, I would like to thank my editors and the wonderful people at Packt Publishing for giving me the opportunity to share my knowledge and experience with other developers around the world.

About the Reviewers

Denis Radin is a frontend engineer working on embedded JavaScript in Liberty Global (Ziggo, UPC). He is passionate about UI experiments and performance optimization. He can be found launching JavaScript into space and the stratosphere in his spare time and believes that this is the sunrise of an interactive revolution. Denis maintains a blog at http://pixelscommander.com.

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