pattern-matching

#TIL #elixir 패턴 매칭으로 map의 value 가져오기

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defp ask_and_schedule(producers, from) do case producers do %{^from => {pending, interval}} -> # ... %{} -> # ... end end

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```elixir def put_new(map, key, value) do case map do %{^key => _value} -> map