One of the best here.

So well written this is. Great work! Mine is clumsy , and your's is inspiring.

Really liked this one. Helps one get better with fundamentals.

speechless I am.

For input '7Vsu e', shouldn't the output be 'usV7e' ?

Honeslty, I feel a little embarrassed at how long I took to do this one. Loved it though.

Wondering if this can be done with a smart comparator.

I am getting this response for a test case:

Should not take more than 18 comparacents for 9 item array, was 18 instead.

This error was caused due to an issue processing the web request, not because of an issue executing your code. Please try again.

Been getting this since morning ...some cloud flare gateway error.

I am also facing the same issue ; I throw an exception and this is considered an error.

For n = 12, my solution fails and I get this

Expected: true, instead got: false
Isn't this wrong ?
Similar is the case with n = 25

this is so cool! loved it :)

I could not understand this conversion:

convert("27", Alphabet.DECIMAL, Alphabet.ALPHA_LOWER); // should return "bb"
convert("hello", Alphabet.ALPHA_LOWER, Alphabet.HEXA_DECIMAL); // should return "320048"

Wrapped the return value in Number(gradeLevel) and it worked.