Maybe you should show us the source of these so we can help you in detail.
Especially if the data itself is coming from a file or a DB or a network service, you can just ingest it in chunks – by using the Stream module – and your code will have predictable memory and CPU footprint.
I believe that for new user of Elixir (or any functional language for that matter), it is better not to learn list comprehension. Just use recursion (both body and tail), There is nothing you can do with list comprehension but not recursion.
Hi,
I’d suggest benchmarking different methods until you find one that works. You can use Benchee for that.
You might like to avoid putting the entire function on one long line. If you give things names and keep each line relatively short it is easier to read.
Did you by chance read the documentation for Stream? At the top or explains how to swap from Enum to Stream.
Source of this code: How to generate permutations from different sets of elements? - #12 by Eiji