Today I Learned

A Hashrocket project

Named Captures with Elixir Regular Expressions

I can’t believe I’m just now learning about this! How neat!

iex(0)> string = "Here is my phone number: 999-111-1234"
"Here is my phone number: 999-111-1234"
iex(1)> regex = ~r/number: (?<phone>[\d|-]+)/
~r/number: (?<phone>[\d|-]+)/
iex(2)> Regex.named_captures(regex, string)
%{"phone" => "999-111-1234"}

Write a regex capture with ?<> in the beginning and get back a map of your captures with Regex.named_captures/2

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