👩💻 Join our community of thousands of amazing developers!
I was reading Igor Kalnitsky's blog post on why Python's map() is mad, and wanted to provide a different perspective. In fact, I would call the design of Python's map() beautiful instead. First off, what does map(f, xs) represent mathematically in the first place? It should invoke function f(x) for every x in xs. Functions, of course, can take many arguments—single argument functions are just the simplest case. So what would be reasonable to assume map(f, xs, ys) would do? In the blog post, I...