Book Image

ReactJS by Example - Building Modern Web Applications with React

By : Vipul A M
Book Image

ReactJS by Example - Building Modern Web Applications with React

By: Vipul A M

Overview of this book

ReactJS is an open-source JavaScript library that brings the power of reactive programming to web applications and sites. It aims to address the challenges encountered in developing single-page applications, and is intended to help developers build large, easily scalable and changing web apps. Starting with a project on Open Library API, you will be introduced to React and JSX before moving on to learning about the life cycle of a React component. In the second project, building a multi-step wizard form, you will learn about composite dynamic components and perform DOM actions. You will also learn about building a fast search engine by exploring server-side rendering in the third project on a search engine application. Next, you will build a simple frontpage for an e-commerce app in the fourth project by using data models and React add-ons. In the final project you will develop a complete social media tracker by using the flux way of defining React apps and know about the best practices and use cases with the help of ES6 and redux. By the end of this book, you will not only have a good understanding of ReactJS but will also have built your very own responsive frontend applications from scratch.
Table of Contents (20 chapters)
ReactJS by Example - Building Modern Web Applications with React
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Back at the office


The duo was back at work. Mike entered with a cup of coffee. It was morning and the office had just started to buzz.

"So Shawn, we did a lot of complex forms stuff last time. Our cart flow is now complete. However, now we have been asked to add a timeout to the cart. We need to show a timer to the user that they need to checkout and complete the order in 15 minutes."

"Any idea how we can do this?"

"Umm, maintain a state for timer and keep updating every second? Take some action when the timer hits zero."

"Right! We will use intervals to reduce the timeout values and keep updating our views to display the timer. As we have been storing the form data in a single place, our Bookstore component, let's go ahead and add a state value that will track this timeout value. Let's change our initial state to something similar to the following:"

getInitialState() {
    return ({currentStep: 1, formValues: {}, cartTimeout: 60 * 15});
  }

"60 X 15, that's 15 minutes in seconds value. We will...