Solving the Text content does not match server-rendered HTML Error in Next.js

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In this guide, we’ll break down why this error occurs, particularly in the context of stateful components, and explore effective solutions to resolve it.

The Problem

What's Happening?

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When you run this code in a development environment, you may receive the following error message in your browser:

"Text content does not match server-rendered HTML."

The Solution

To resolve this issue, there are a few approaches you can take. Below are the recommended solutions:

1. Use Effect Hook to Set State

The simplest solution is to use the useEffect hook to set the state after the component is mounted on the client:

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

In this code snippet, setId will only run after the component has mounted on the client side. This ensures that there will be no mismatch between the server-rendered HTML and the client-rendered HTML.

2. Using getStaticProps or getServerSideProps

getStaticProps

If you want the ID to remain the same for all users:

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In this method, the ID will be generated on the server when it builds the application, ensuring consistency across all requests.

getServerSideProps

If you prefer to generate a new ID for each request:

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

This method generates a new ID every time the page is requested, providing a unique experience for different users.

Conclusion

As a best practice, always ensure that the rendered HTML matches between the server and client, especially when dealing with dynamic data. This not only enhances your user experience but also maintains the integrity of your application.

Happy coding!