Very nice and funny kata on object oriented programming.

oops. interpreted it wrong. sorry !

Instructions do not say that. Closing.

Do they?

Since a function only can return one value it is absolutely sufficient to only support functions that consume only one parameter. Build your pipe function in a way, that one can pipe an arbitrary number of functions.

I took the instructions to mean to make sure you can pipe together as many functions as you want like:

addOne.pipe(square).pipe(addOne).pipe(square).pipe(addOne).pipe(square).pipe(addOne).pipe(square).pipe(addOne)

It doesn't say anything about the pipe function itself supporting more than one argument

instructions say to make it so pipe() can accept any number of arguments but test cases only check that it works for 1 argument

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Very nice computer programming concept and beginner friendly series, great kata.

That easy?

UPD
See what you meant

As Voile said tests with more than 2 tail calls are not different from tests with 2 calls.

No sample tests.

This should really not be 5 kyu

Crystal translation kumited! Please accept

Ruby translation kumited! Please accept

Nah forget it I'll change it myself later

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