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Learn React with TypeScript - Second Edition

You're reading from  Learn React with TypeScript - Second Edition

Product type Book
Published in Mar 2023
Publisher Packt
ISBN-13 9781804614204
Pages 474 pages
Edition 2nd Edition
Languages
Author (1):
Carl Rippon Carl Rippon
Profile icon Carl Rippon

Table of Contents (19) Chapters

Preface 1. Part 1: Introduction
2. Chapter 1: Introducing React 3. Chapter 2: Introducing TypeScript 4. Chapter 3: Setting Up React and TypeScript 5. Chapter 4: Using React Hooks 6. Part 2: App Fundamentals
7. Chapter 5: Approaches to Styling React Frontends 8. Chapter 6: Routing with React Router 9. Chapter 7: Working with Forms 10. Part 3: Data
11. Chapter 8: State Management 12. Chapter 9: Interacting with RESTful APIs 13. Chapter 10: Interacting with GraphQL APIs 14. Part 4: Advanced React
15. Chapter 11: Reusable Components 16. Chapter 12: Unit Testing with Jest and React Testing Library 17. Index 18. Other Books You May Enjoy

Using route parameters

In this section, we will understand route parameters and how they are useful before using a route parameter in our app.

Understanding route parameters

A route parameter is a segment in the path that varies. The value of the variable segment is available to components so that they can render something conditionally.

In the following path, 1234 is the ID of a customer: /customers/1234/.

This can be defined as a route parameter in a route as follows:

{ path: '/customer/:id', element: <Customer /> }

A colon (:) followed by a name defines a route parameter. It is up to us to choose a parameter name that makes sense, so the :id segment in the path is the route parameter definition in the preceding route.

Multiple route parameters can be used in a path as follows:

{
  path: '/customer/:customerId/tasks/:taskId',
  element: <CustomerTask />,
}

Route parameter names obviously have to be unique...

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