在Elixir中合并具有数组值的地图

Question

你好,我有这个数组

temp=[%{"a"=>1},%{"b"=>2}]

total=%{"c"=>3,"d"=>4}

我如何添加临时总值,所以我结束

total=%{"a"=>1,"b"=>2,"c"=>3,"d"=>4}

Answer 1

您可以将列表中的所有total值用作Enum.reduce/3和Map.merge/2的初始值.

Enum.reduce(temp, total, fn (map, acc) -> Map.merge(acc, map) end)

返回:

%{"a" => 1, "b" => 2, "c" => 3, "d" => 4}