$ (1..10) |> Enum.map(&(&1**&1)) |> Enum.filter(&(&1 < 40))

This is the equivalent of this piping op done in terse style JS:

    [for (i of Array(10).keys()) ++i].map(e=> e*e ).filter(e=> e<40 )

This is not as concise as the example you provided but it's still very neat and powerful.