I suddenly feel like a monkey with a typewriter

[Javascript]

Implementing Maybe.do is much easier once you have the details!

m is a list of arguments- m[0] is the Maybe Monad and m[1...] are functions of signature value -> value.

Last two C# tests are broken. Three spaces must be turned into a single space in the output, but the whitespaces in the input string and the expected result are not consistent.
Here's what you get for the two tests- I've used * to denote a space.
The rest of the tests pass, and some use whitespace so it isn't a corner case.
input string: ..*
Expected: "EE"
But was: "EE"

input string: ...---...-.-.---.....--.-..-..-.-.-.--....-.---.---...-.----..-.---..---.--....---...-..-.-......-...---..-.---..-----.*.-.-.-**
Expected: "SOS! THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG."
But was: "**SOS! THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG." (only the first two spaces were incorrect)

For the F# version, I was annoyed by the two aspects:

1. That the tests rely on a "addShape" function that is not mentioned in the challenge or defined by the test code.
2. That, by relying on the above method to construct a list by mutable tail concactenation, it is not possible to write performant, idiomatic F# (ie. build the list and then optionally call List.rev)

The order of the input list shouldn't matter at all to the test, and yet it clearly does in this case.