The "Overnight" Success that Took Years 🚀 I BECAME a better developer overnight. Okay, that’s a lie. It actually took a lot of painful debugging sessions and production hotfixes to realize I was doing it wrong. I used to write "almost correct" code. I only cared about the Happy Path—the flow where everything works perfectly, the user enters the right data, and the server never drops a request. Spoiler alert: That almost never happens. The tiny habit that changed everything? I started handling edge cases first. Now, before I write a single line of main logic, I put on my "defensive engineer" hat and ask: "What can break this?" I look for the goblins hiding in the details: 🚫 Null values 🚫 Empty inputs 🚫 Unexpected types 🚫 Timeouts Earlier, I ignored these because I assumed things would just work. Bugs weren't coming from my complex logic; they were coming from the simple situations I didn't bother to think about. So I flipped my approach: 1️⃣ Guard against bad inputs immediately. 2️⃣ Return early if something feels off. 3️⃣ Thenwrite the main logic for success. Result? ✅ Fewer bugs ✅ Cleaner functions ✅ Less debugging time ✅ Way more confidence when pushing to production It’s a small mental shift, but it’s the difference between being a coder and being a real engineer. Good code handles success. Great code handles failure first. What’s one coding habit you swear by that makes your code bulletproof? Share it in the comments! 👇 #coding #softwareengineering #cleancode #programming #developers #defensiveprogramming
"Divide by ZERO". I always test for/trap that old chestnut.
Happy path is what you do in the MVP to ensure the concept is sound and works as expected. Then you tackle the edge cases to harden what you just put out there.