Sometimes, we may run into the ‘Warning: Unknown DOM property class. Did you mean className?’ error when developing a React app.
In this article, we’ll look at how to fix the ‘Warning: Unknown DOM property class. Did you mean className?’ error when developing a React app.
Fix the ‘Warning: Unknown DOM property class. Did you mean className?’ Error When Developing a React App
To fix the ‘Warning: Unknown DOM property class. Did you mean className?’ error when developing a React app, we should make sure we replace the class attribute in our components with className.
For instance, we write:
import React from "react";
export default function App() {
return <div className="hello">hello world</div>;
}
to assign the hello class to the div instead of:
import React from "react";
export default function App() {
return <div class="hello">hello world</div>;
}
Conclusion
To fix the ‘Warning: Unknown DOM property class. Did you mean className?’ error when developing a React app, we should make sure we replace the class attribute in our components with className.
