The Quest Begins (The “Why”) Picture this: I’m deep in a codebase that looks like the junkyard planet from Star Wars —tangled wires, rusted droids, and a mysterious hum coming from somewhere I can’t quite locate. My task? Add a simple discount rule to an e‑commerce checkout.
Source: [Dev.to](https://dev.to/timevolt/refactoring-legacy-code-the-jedi-move-of-extracting-pure-functions-4eo9)