Writing idiomatic Elixir code

Questions & Help Questions
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2

A more functional apporach

output_texts = %{
  "a" => "text1",
  "b" => "text2",
  "c" => "text3",
}

out = data
      |> Enum.filter(fn {_, v} -> v > 0 end)
      |> Enum.filter(fn {k, _} -> Enum.member(Map.keys(output_texts), k) end)
      |> Enum.map(fn {k, _} -> output_texts[k] end)
      |> Enum.join()