Fixing Navbar.module.css Usage Error in React

Learn how to properly style your React navbar component using CSS modules. Resolve common errors and enhance your styling skills with this comprehensive guide.
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This video is based on the question https://stackoverflow.com/q/74918427/ asked by the user 'Anukriti' ( https://stackoverflow.com/u/20863120/ ) and on the answer https://stackoverflow.com/a/74918443/ provided by the user 'Snehil Agrahari' ( https://stackoverflow.com/u/20400930/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Fixing Navbar.module.css Usage Error in React: A Beginner's Guide

When diving into React, it's easy to encounter various issues as you explore new concepts. One common stumbling block is understanding how to effectively use CSS modules for styling your components, specifically when setting up your navbar. If you are new to React and getting the "style can only have objects, not strings" error, don't worry! This guide will guide you through the solution step by step.

Understanding the Problem

You might have recently encountered an error while trying to apply styles from a CSS module to your navbar component. The typical error message "style can only have objects, not strings" occurs when there is a mix-up with how styling is being applied in your component. When interacting with styling in React, understanding how className and styles are utilized is crucial.

Here’s a closer look at the code causing the trouble:

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

In this snippet, you've imported your CSS module but made a mistake in how you're assigning classes and styles. Let's fix that!

The Solution: Correctly Applying Styles Using CSS Modules

The answer to the issue lies in proper usage of the className attribute. Instead of mixing the className property with a string and using the style attribute, you can simply apply the style directly from your imported CSS module. Here’s how you can do it:

Step-by-Step Breakdown

Import the CSS Module: Ensure you have correctly imported your CSS module at the beginning of your file.

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

Utilize the CSS Class in className: Modify your component code to assign the class from the CSS module directly to the className attribute, removing the style property entirely.

Update your component's div as follows:

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

Why This Works

The styles.navbar is an object imported from your CSS module that contains a string representing your class name. By setting className={styles.navbar}, you're telling React to apply this specific CSS class to the div.

React expects a string for className, and using styles.navbar achieves this without the complications of dealing with styles as inline objects.

Conclusion

By following the simple steps outlined above, you'll be able to resolve the "style can only have objects, not strings" error and correctly style your navbar component using CSS modules in React. Remember, when using CSS modules:

Always assign class names through className using the imported styles object.

Avoid mixing inline styles with class assignments.

Once you apply these practices, your React components will look good and function correctly. Happy coding!

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