Скачать или смотреть Resolving the Invalid hook call Error in Custom React Hooks

Learn how to effectively handle the `Invalid hook call` error you may encounter when using custom hooks in React, with clear solutions and examples.
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This video is based on the question https://stackoverflow.com/q/75636411/ asked by the user 'Webnum' ( https://stackoverflow.com/u/14766602/ ) and on the answer https://stackoverflow.com/a/75636761/ provided by the user 'mbojko' ( https://stackoverflow.com/u/7194268/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Resolving the Invalid hook call Error in Custom React Hooks

When working with React, you may encounter the dreaded Uncaught (in promise) Error: Invalid hook call message. This error typically arises when trying to use React hooks (like custom hooks) incorrectly. It can be confusing, especially for those just getting acquainted with React’s hooks system. In this post, we will explore what causes this error and how to resolve it effectively.

Understanding the Error

The error message indicates several potential issues:

Mismatched React Versions: If you have different versions of React and React DOM, it can result in unexpected behavior.

Breaking the Rules of Hooks: React hooks must always be invoked at the top level of a React function component, not within loops, conditions, or nested functions.

Multiple Copies of React: Having more than one instance of React in your project can lead to unexpected results, as each instance may manage its own hooks.

In our case, we’ll delve deeper into breaking the rules of hooks by examining how our custom hook is being utilized in a component.

The Problematic Hook Implementation

Here is the original implementation of the custom hook and the component that attempts to use it.

Custom Hook Code

[[See Video to Reveal this Text or Code Snippet]]

Component Usage

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Key Issues to Address

The useMooves hook is not being called properly in the Container component – the function needs to be executed, not referenced.

The logic inside the hook does not account for the boundaries of the array length correctly. The use of continue; is also invalid within the hook function.

Implementing a Solution

Here’s how to refactor the code to ensure a functional implementation of the custom hook, resolving the issues stated above.

Revised Custom Hook

[[See Video to Reveal this Text or Code Snippet]]

Revised Container Component

[[See Video to Reveal this Text or Code Snippet]]

Updating the Circle Component

The Circle component does not need revisions since it’s functioning correctly in relaying the click event.

Conclusion

By following the guidelines and utilizing proper function calls, we can effectively manage custom hooks in React without running into the Invalid hook call error. Always ensure that hooks are invoked at the top level of components and that array bounds are properly respected during modifications. With this knowledge, you can confidently use custom hooks in your React projects!

Feel free to share your experiences or ask any questions regarding the use of React hooks in the comments below!