Paulo Guilherme Aquino dos Santos’ Post

## The best code I've ever read was... boring --- True story. I was reviewing this codebase from a guy who's been coding for 20+ years. Expected to see some wizard-level stuff. Clever one-liners. Fancy patterns. Nope. It was almost... boring? Clean. Simple. Readable. Zero ego. And I realized something: **Good code doesn't impress in a code review.** **Good code saves your butt at 3 AM when production is down.** Here's what I've learned after 25 years: **Naming is everything** ❌ `processData()` - what does this even mean? ✅ `calculateMonthlyRevenue()` - oh, I get it **Functions should do ONE thing** If your function has "and" in the name, it's doing too much. ❌ `validateAndSaveUser()` Just split it: `validateUser()` + `saveUser()` **Comments should explain WHY, not WHAT** ❌ `// Increment counter` (duh) ✅ `// Retry 3 times before failing - handles transient network errors` **Delete code aggressively** Every line is a liability. The best code is the code you don't write. Anyway. Write code for the person reading it at 3 AM. That person might be future you. Be nice to them. What's your #1 rule for clean code? Curious what others do. --- #CleanCode #SoftwareEngineering #DeveloperTips

I strongly agree with this. After many years working with production systems, the main rule I’ve learned is: Code must be predictable. When something breaks at 3 AM, what saves you isn’t cleverness — it’s predictability. A few things I always try to follow: Prefer linear flow whenever possible If I need to build a complex mental diagram to understand a function, it’s already wrong. Reduce implicit state Production bugs often come from hidden state or unexpected side effects. Fail explicitly Clear errors save hours of debugging. ❌ return null ✅ return Result::Error(UserNotFound) And one rule I’ve come to appreciate more over time: The best code is the code you can understand in 30 seconds. If it takes 5 minutes to understand, in production that often turns into 30. It’s interesting how, after decades of programming, we realize that simplicity is actually the hardest thing to achieve.

Write code for your future self — someone who may not remember every detail, but will appreciate clarity.

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