將一個 hash 值映射到另一個 hash ruby

Question

我有一個 hash 它以下列方式為我提供數據：

details = [{"severity_longevity" => "Medium", "operating_leverage" => "High",
        "financial_leverage"=> "Low", "revenue_growth"=> "Low"}]

I have one hash which gives me the score that I am supposed to assign.

分數 = [{"低"=> 5},{"中"=> 10}, {"高"=> 15}]

如何更改details hash 中的“中”“低”和“高”以及它們的score hash？

Answer 1

對於哈希，您可以使用transform_values方法

details = {
  "severity_longevity" => "Medium", 
  "operating_leverage" => "High",
  "financial_leverage"=> "Low", 
  "revenue_growth"=> "Low"
}
score = {"Low" => 5, "Medium" => 10, "High" => 15}

updated = details.transform_values { |v| score[v] }
# => { "severity_longevity" => 10, ... }