Best practices for writing clean code in 2025

💻 Coding 217 views 4 replies 📌 Pinned
I've been working on improving my code quality lately. What are your top tips for writing clean, maintainable code?

Here are mine:
1. Keep functions small - One responsibility per function
2. Use meaningful variable names
3. Write comments for why, not what

What would you add to this list?

Replies (4)

Great list! I would add:

4. Use consistent formatting - Pick a style guide and stick to it
5. Don't repeat yourself (DRY) - Extract common logic into reusable functions
6. Write unit tests - They serve as documentation and catch bugs early
Another important one: Error handling

Always anticipate what could go wrong and handle errors gracefully. Don't just let exceptions crash your app!
I'd emphasize code reviews. Even if you follow all these practices, having another pair of eyes review your code catches so many issues.

Also, use linters like ESLint or Pylint to enforce standards automatically.
Use meaningful variable for better understanding and to prevent confusion.
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