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...
Remove all the consonants
Find the numeric mean of the prime numbers in a matrix.
Find matching parenthesis
Solve the Sudoku Row
First N Perfect Squares
Make an N-dimensional Multiplication Table
Return the 'Size' of a String of Code
Return the first and last characters of a character array
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