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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
Languages
Tools
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Authors (2):
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Adam Boduch Adam Boduch
Author Profile Icon Adam Boduch
Adam Boduch
Roy Derks Roy Derks
Author Profile Icon Roy Derks
Roy Derks
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Toc

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

Simple property validators

In this section, you'll learn how to use the simple property type validators available in the prop-types package. Then, you'll learn how to accept any property value as well as make a property required instead of optional.

Basic type validation

Let's take a look at validators that handle the most primitive types of JavaScript values. You will use these validators frequently, as you'll want to know whether a property is a string or a function, for example. This example will also introduce you to the mechanisms involved with setting up validation of a component. Here's the component; it just renders some properties using basic markup:

import React from "react";
import PropTypes from "prop-types";

export default function MyComponent({
myString,
myNumber,
myBool,
myFunc,
myArray,
myObject
}) {
return (
<section>
<p>{myString}</p>
<p>{myNumber}</p>
<p>
&lt...
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