將哈希鍵轉換為Ruby中的哈希

Question

請查看以下輸入，並幫助我將其轉換為以下輸出

輸入：

arr = [{"Key1"=>1, "key3"=>1}, {"Key2"=>3, "Key4"=>0}, {"Key1"=>1, "Key4"=>1},
       {"Key2"=>3, "key3"=>0}, {"Key1"=>3, "Ke5"=>0}]

所需的輸出：

[{"Key1"=>1}, {"Key2"=>1}, {"Key3"=>3}, {"Key4"=>0}, {"Key1"=>1},
 {"Key4"=>1}, {"Key3"=>3}, {"Key2"=>0}, {"Key1"=>3}, {"Key5"=>0}]

Answer 1

嘗試這個：

data.flat_map(&:to_a).map { |k, v| {k => v} }