Best practices to avoid document is not defined error
- Use useEffect to Run Client-Side Code: Ensure that code dependent on the document object is executed only on the client side by wrapping it in a useEffect hook.
- Check if document is Defined Before Accessing It: Perform a conditional check to confirm the existence of the document object.
- Use Dynamic Imports to Load Client-Side Components: Dynamically import components that rely on the document object to prevent them from being rendered on the server.
- Avoid Direct DOM Manipulation in SSR: Ensure that DOM manipulation code is only executed in the browser environment.
- Utilize Conditional Rendering: Render components or perform actions conditionally based on the environment to ensure code runs in the correct context.
How to fix “Next.js: document is not defined”?
Next.js is a powerful React framework that allows developers to create server-side rendered (SSR) and static web applications. A common error encountered while working with Next.js is the “document is not defined” error. This error happens because the document is a client-side browser object, which isn’t available during server-side rendering. In this article, we’ll explain why this error occurs and how to fix it.
Table of Content
- When does this error occur?
- Fixing Document not defined
- Detailed Code Explanation
- Best practices to avoid document is not defined error
- Conclusion
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