My Functional Programming Awakening: Patterns I'd Been Using All Along

A dev takes functional programming from Python class to JavaScript land—with surprising wins. The usual suspects show up: closures, function composition, and some spicy parser combinators. But the real magic? Swapping out side-effect soup for pure functions, Result-based error handling, and higher-order functions that snap together like Lego.

System shift: JavaScript isn’t just toying with FP anymore. The ecosystem’s leaning in—for code that’s cleaner, testable, and way easier to wire together.