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Learn React Hooks

You're reading from   Learn React Hooks Build and refactor modern React.js applications using Hooks

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Product type Paperback
Published in Oct 2019
Publisher Packt
ISBN-13 9781838641443
Length 426 pages
Edition 1st Edition
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Author (1):
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Daniel Bugl Daniel Bugl
Author Profile Icon Daniel Bugl
Daniel Bugl
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Table of Contents (19) Chapters Close

Preface 1. Section 1: Introduction to Hooks
2. Introducing React and React Hooks FREE CHAPTER 3. Using the State Hook 4. Writing Your First Application with React Hooks 5. Section 2: Understanding Hooks in Depth
6. Using the Reducer and Effect Hooks 7. Implementing React Context 8. Implementing Requests and React Suspense 9. Using Hooks for Routing 10. Using Community Hooks 11. Rules of Hooks 12. Building Your Own Hooks 13. Section 3: Integration and Migration
14. Migrating from React Class Components 15. Redux and Hooks 16. MobX and Hooks 17. Assessments 18. Other Books You May Enjoy

Solving problems with conditional Hooks

Now that we have learned about the different alternatives to conditional Hooks, we are going to solve the problem that we had in our small example project earlier. The simplest solution to this problem would be to always define the Hook, instead of conditionally defining it. In a simple project like this one, always defining the Hook makes the most sense.

Edit src/App.js and remove the following conditional Hook:

    const [ name, setName ] = enableFirstName
? useState('')
: [ '', () => {} ]

Replace it with a normal Hook, such as the following:

    const [ name, setName ] = useState('')

Now, our example works fine! In more complex cases, it might not be feasible to always define the Hook. In that case, we would need to create a new component, define the Hook there, and then conditionally render...

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