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React and React Native

You're reading from   React and React Native A complete hands-on guide to modern web and mobile development with React.js

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Product type Paperback
Published in Apr 2020
Publisher Packt
ISBN-13 9781839211140
Length 526 pages
Edition 3rd Edition
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Authors (2):
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Adam Boduch Adam Boduch
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Adam Boduch
Roy Derks Roy Derks
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Roy Derks
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Table of Contents (33) Chapters Close

Preface 1. Section 1: React
2. Why React? FREE CHAPTER 3. Rendering with JSX 4. Component Properties, State, and Context 5. Getting Started with Hooks 6. Event Handling - The React Way 7. Crafting Reusable Components 8. The React Component Life Cycle 9. Validating Component Properties 10. Handling Navigation with Routes 11. Code Splitting Using Lazy Components and Suspense 12. Server-Side React Components 13. User Interface Framework Components 14. Section 2: React Native
15. Why React Native? 16. Kick-Starting React Native Projects 17. Building Responsive Layouts with Flexbox 18. Navigating Between Screens 19. Rendering Item Lists 20. Showing Progress 21. Geolocation and Maps 22. Collecting User Input 23. Displaying Modal Screens 24. Responding to User Gestures 25. Controlling Image Display 26. Going Offline 27. Section 3: React Architecture
28. Native UI Components Using NativeBase 29. Handling Application State 30. Why Apollo? 31. Building an Apollo React App 32. Other Books You May Enjoy

Declarative UI structures

Before we move forward with more in-depth code examples, let's take a moment to reflect on our "hello world" example. The JSX content was short and simple. It was also declarative because it described what to render, not how to render it. Specifically, by looking at the JSX, you can see that this component will render a paragraph, and some bold text within it. If this were done imperatively, there would probably be some more steps involved, and they would probably need to be performed in a specific order.

I find it helpful to think of declarative as structured and imperative as ordered. It's much easier to get things right with a structure than to perform steps in a specific order.

The example we just implemented should give you a feel for what declarative React is all about. As we move forward in this chapter and throughout the book, the JSX markup will grow more elaborate. However, it's always going to describe what is in...

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