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  • Book Overview & Buying The React Workshop
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The React Workshop

The React Workshop

By : Brandon Richey , Ryan Yu , Endre Vegh , Theofanis Despoudis , Anton Punith , Florian Sloot
4.4 (10)
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The React Workshop

The React Workshop

4.4 (10)
By: Brandon Richey , Ryan Yu , Endre Vegh , Theofanis Despoudis , Anton Punith , Florian Sloot

Overview of this book

Are you interested in how React takes command of the view layer for web and mobile apps and changes the data of large web applications without needing to reload the page? This workshop will help you learn how and show you how to develop and enhance web apps using the features of the React framework with interesting examples and exercises. The workshop starts by demonstrating how to create your first React project. You’ll tap into React’s popular feature JSX to develop templates and use DOM events to make your project interactive. Next, you’ll focus on the lifecycle of the React component and understand how components are created, mounted, unmounted, and destroyed. Later, you’ll create and customize components to understand the data flow in React and how props and state communicate between components. You’ll also use Formik to create forms in React to explore the concept of controlled and uncontrolled components and even play with React Router to navigate between React components. The chapters that follow will help you build an interesting image-search app to fetch data from the outside world and populate the data to the React app. Finally, you’ll understand what ref API is and how it is used to manipulate DOM in an imperative way. By the end of this React book, you’ll have the skills you need to set up and create web apps using React.
Table of Contents (20 chapters)
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Preface

Comparing useEffect Hooks with Life Cycle Methods

After seeing how we can be more precise in our code using effects compared to life cycles, let's have a brief overview, through a diagram, to see how the life cycle methods in the class components work, as shown in the following:

Figure 11.6: Life cycle methods

In classes, you have life cycle methods that tap into some state of that component. The problem with that model is that you may actually need to break each event into multiple different unrelated functions. For example, say you want to attach an event listener and, to avoid memory leaks, you want to remove the listener when it is no longer needed. What you must do in a class-based component is to attach it in componentDidMount and remove it in componentWillUnmount. This means that, now, both of those life cycle methods must track and have access to that listener. Instead of our code being grouped by context, it is grouped by life cycle methods...

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The React Workshop
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