@ProblemSolver

The Engineering Behind String Trimming

Mar 30 · 5 min read · A Simple Function with Non-Trivial Complexity At first glance, .trim() looks like one of the simplest functions in programming. " hello world ".trim(); // "hello world" Clean. Predictable. Almost

Microservices Don’t Reduce Complexity — They Relocate It

Mar 28 · 2 min read · This article has been originally published on SubStack: Read it here The common pitch for microservices is cleaner separation and independent deployment. Technically true. But the real problem isn’t

When “Clean” Code Makes Systems Harder

Mar 13 · 2 min read · We celebrate small functions, strict separation of concerns, and zero duplication. But taken too far, “clean” code shifts complexity sideways instead of removing it. You end up with ten tiny methods s

The On/Off Switch That Powers Big Tech

Mar 6 · 4 min read · Hey everyone! 👋 Darshit here — let’s jump right in! You've probably wondered how Netflix tests a new UI on 1% of users without breaking it for everyone else. Or how Facebook ships 10 features a day w

Inside the JavaScript Call Stack

Feb 21 · 4 min read · Hey everyone! 👋 Darshit here — let’s jump right in! You've console.logged a variable. It's undefined. You swear you declared it three lines ago. Welcome to the call stack—where JavaScript's memory is