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Oct 12, 2024
6 min read

The Art of Clean Code in Modern React Components

DT

Deovrat Tiwari

Software Engineer

The Art of Clean Code in Modern React Components

Writing code that works is the easy part. Writing code that your teammates won't hate you for? That's the real skill.

In React, it's so easy to just keep adding standard "spaghetti code" until a component is 500 lines long. But technical debt is real, and it pays interest. Here is how I try to keep my components sane.

1. Small, Single-Responsibility Components If I have to scroll to read your component, it's probably too big. I try to make sure each component does exactly one thing. If it's handling a form, a modal, and a list? Break it up.

2. Hooks are for Logic, Components are for UI I hate seeing `useEffect` spaghetti inside a JSX component. Move that logic into a custom hook! It makes the component so much cleaner: `const { data, loading } = useUserData();`. Beautiful.

3. Variable Naming Matters Don't name things `data` or `temp`. Name them `userProfile` or `draftMessage`. Code is read way more often than it's written, so be kind to the reader.

4. Avoid Prop Drilling If you're passing a prop down 5 levels, stop. Use Composition (passing components as children) or just grab a state manager (or Context).

5. Testing isn't Optional If you can't test a component easily, it's probably written badly. Clean code is naturally testable.

Conclusion Clean code isn't about being a perfectionist; it's about respect for your team and your future self. A little effort now saves hours of debugging later.

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