Clever!

non an error?

What would the expected return value be if the input was null?

it does not works with null input.

it works basically like a Fibonacci, but summing the last 3 (instead of 2) numbers of the sequence to generate the next.

• you're right, but depending on the requirments of the kata this is not a valid.

welcome to js

lmao nice

when you return you don't need to add the break couse you already breaking the code

This comment has been deleted.

Интересная техника кода

Cool!

this is dark magic

For such a short string is not something to bother about, and it feels cleaner for this specific problem

exactly my thoughts!