Share an Elixir tip weekly

This thread is inspired by @danielpclark’s popular threads elsewhere - I’m sure he won’t mind me nicking his idea for Elixir :lol:

Each week share a cool Elixir tip here. Keep it short and simple and we can all be better developers as we improve our Elixir skills. I suggest everyone to participate to keep us all continually in the process of self improvement.


I’ll kick off with… in iex you can reload a module with:

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