Nice expression for the usage test. Maybe one can add function "dec2base", cause the return type is a String.
The problem description should mention that dec2base isn't allowed either.
This will fail to detect certain palindromes which contain zero e.g. 10101 however the test suite doesn't (yet) contain any such.
There's something strange with the Cody test suites today...
Replace NaNs with the number that appears to its left in the row.
Permute diagonal and antidiagonal
Create incrementing array
Next Higher Power of B
ASCII Birthday Cake
Lychrel Number Test (Inspired by Project Euler Problem 55)
Set a Soroban Abacus
English to Pig Latin Translator
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