I’m not quite sure which line is doing that. I was kind of blowing past some of your code and realize you have out <> symbol. Assuming (oops sorry, that’s my old Ruby brain talking there)symbol is a symbol, the <> operator only works on strings.
Which line is it failing on? It wouldn’t be elem because the 2nd argument of elem is an integer index.
Speaking of elem, I like to generally stay away from it in favour of pattern matching as it’s much clearer.
Instead of:
tuple = {1, 2}
one = elem(tuple, 0)
two = elem(tuple, 1)
you can simply do:
tuple = {1, 2}
{one, two} = tuple
elem is basically just useful in pipelines (even then I personally don’t like to use it).
