Vivid Variants with Class Variance Authority: Revolutionizing React Styles

Nov 15, 2023
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Recently, I started working with a new team at Applied Coding, Inc and was introduced to a tool I hadn't used before - Class Variance Authority (CVA). It's a straightforward and practical tool that simplifies managing styles. This not only makes my coding life easier but also leads to a cleaner, more user-friendly interface in the projects I work on.

Here's a glimpse of how CVA works in a button component:

Code to make a button with cva

In this snippet, buttonStyles utilizes CVA to create a flexible styling base. The variant property allows for easy toggling between styles like 'primary' and 'secondary'. This is particularly useful when you want to maintain consistency across various buttons while also providing unique styles where necessary.

Two buttons with Primary and Secondary styles

Now, let's compare this to the traditional approach:

Code to make a button without cva

In the traditional method, we manually concatenate classes based on the variant prop, leading to more complex and less maintainable code. This approach can quickly become cumbersome, especially in larger projects with numerous components requiring various styles.

Key advantages of CVA:

  • Simplicity in Variance: Switching styles is as simple as changing the variant prop.
  • Cleaner Codebase: The styling logic is neatly encapsulated within buttonStyles, making the component structure more organized and readable.
  • Scalability: It's far simpler to add or modify styles with CVA, especially as project requirements evolve.

Have you worked with CVA before? What tools have you used to create style variants?

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