re: AoC Day 1: Chronal Calibration VIEW POST

re: At a glance, in the Elixir part two solution it looks like the list of numbers is just being passed through as is. So, it is never moving on to the...

It does, but because Elixir is immutable it returns a new list with the first element from repeated_numbers instead of mutating (changing in place) repeating_numbers

Also, this line hd(Enum.take(repeated_numbers, 1)) could be rewritten as hd(repeated_numbers) to get the same functionality. The more "Elixir way to write that would be to use pattern matching. Something like [head | tail] = repeated_numbers Here is some more info on pattern matching, if you're interested. I think it is super cool!

Thank you! :-)

I have to get used again to immutability and transformation instead of mutability and assignment :D

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