Elixir 使用List 初始化一个map

[zhulinpinyu]

a = ["x","y","z"]

a
|> Enum.reduce(%{}, fn (k,acc) -> acc |> Map.put(String.to_atom(k), "") end )  #=> %{x: "", y: "", z: ""}

简化版写法

a = ["x","y","z"]
a |> Enum.reduce(%{}, &(Map.put(&2, String.to_atom(&1), "")))   #=>%{x: "", y: "", z: ""}