Working in languages like Elixir and Rust is fun for many reasons. But one of
my favorite features is the formatter. Elixir (after 1.4) comes with a
formatter which is well integrated with mix and can be called using
mix format. At first, the idea of a machine changing the code that I wrote
for my project didn’t sound very exciting to me. But working in a team
environment and being able to configure the formatter based on what best
practices a project follows, made it all worth it. Moreover, the ability to
run it (mix format --check-formatted or cargo fmt --check) as part of the
CI to see if any new code is formatted, was a great added bonus.
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Summary
Elixir: Permutations
In the last post we saw how to write a combinations function. So, in this
post, we will see how to write a permutations function in elixir, again
using pattern-matching and recursion: