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React and React Native

You're reading from   React and React Native Build cross-platform JavaScript and TypeScript apps for the web, desktop, and mobile

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Product type Paperback
Published in Apr 2024
Publisher Packt
ISBN-13 9781805127307
Length 508 pages
Edition 5th Edition
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Authors (3):
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Adam Boduch Adam Boduch
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Adam Boduch
Mikhail Sakhniuk Mikhail Sakhniuk
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Mikhail Sakhniuk
Roy Derks Roy Derks
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Roy Derks
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Toc

Table of Contents (33) Chapters Close

Preface 1. Part I: React
2. Why React? FREE CHAPTER 3. Rendering with JSX 4. Understanding React Components and Hooks 5. Event Handling in the React Way 6. Crafting Reusable Components 7. Type-Checking and Validation with TypeScript 8. Handling Navigation with Routes 9. Code Splitting Using Lazy Components and Suspense 10. User Interface Framework Components 11. High-Performance State Updates 12. Fetching Data from a Server 13. State Management in React 14. Server-Side Rendering 15. Unit Testing in React 16. Part II: React Native
17. Why React Native? 18. React Native under the Hood 19. Kick-Starting React Native Projects 20. Building Responsive Layouts with Flexbox 21. Navigating Between Screens 22. Rendering Item Lists 23. Geolocation and Maps 24. Collecting User Input 25. Responding to User Gestures 26. Showing Progress 27. Displaying Modal Screens 28. Using Animations 29. Controlling Image Display 30. Going Offline 31. Other Books You May Enjoy
32. Index

Testing in general

Software testing is a process aimed at identifying errors and verifying the functionality of a product to ensure its quality. Testing also allows developers and testers to assess the system’s behavior under various conditions and to ensure that new changes have not led to regression, meaning they have not disrupted existing functionality.

The testing process includes a series of actions conducted to detect and identify any aspects that do not meet requirements or expectations. One example of such an action could be manual testing, where a developer or tester manually checks the application. However, this approach is time-consuming and provides little guarantee that the application is secure and free of critical errors in operation.

To ensure a higher level of application reliability while saving time on testing, there are automated tests. They allow the functionality of the application to be verified without human intervention.

An automated test...

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