Kata

It is not clear from the instruction if functions other that term will be called before the sequence has grown enough. For Example, given the Van Eck Series: 0, 0, 1, 0, 2, 0, 2, 2, 1, 6, ...

Is this an expected test case?

let ins = VanEck(0) // Initialize van eck starting at 0

assert(ins.first(6) == 9) // Note that `term` is not called to let the sequence grow.

The test cases seem to always have enough calls to .term to let the sequence grow, however, the description reads as if there is no specific order in which the functions will be called.

My question is: I'm working on translation this to Scala. Should i have a test case as described above? If yes: Will the difficulty of the kata be different between Javascript and Scala? If no: Should the Kata description be updated to reflect this clarification?

Or is it Secret Option no C: I'm blind and the original JS kata does infact test for such "out-of-order" calls?

Thanks for reading all that!

When I saw the "Don't Know"s, I instanly thought Numberphile

Any python/ruby translation forseen?

After seeing how first 2 van Eck katas went, I didn't expect anyone to touch this sequence again :P It looks like the twists you added made it good enough, and hard enough. Well done!

One minor issue I have is: why is the method to find max number called fast ? It has nothing to do with speed and it threw me off-guard :( Why not just call it max / maxSomething?

A Haskell translation may be forthcoming. Watch this space ..