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Recursion-joy, a set of recursion problems in JavaScript

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Re: Recursion-joy, a set of recursion problems in JavaScript

#4
post #2

Learning about recursion was hard. Doing this helped me better understand it. PRs, critics, welcomed!

I found recursion rather easy. But I think it's often introduced too early.

Most people I've seen struggling with it hadn't really understood what a function definition was and how they are scoped. Somehow, creating a function and calling it somewhere else didn't totally convey the concept. In most peoples head these two places used a different function somehow, or they didn't understand that a function creates new variables on the stack, they just assumed that they always override the old ones.