A Beginner’s Guide to Understanding JavaScript Closures

Closures are one of those topics that will pop up in most JavaScript interviews. Developers who are just starting out are usually scared of them (I know I was), but there’s no reason to be. Like recursion, closures can be over explained in a way that makes them sound complex, but at their core they couldn’t be simpler. And I’ll prove it by writing one in 6 lines.