如何转换'{'key1"'=>"“ value1” key2" 2" 2"

Question

我想转换：

{"key1" => "value1","key2" => "value2"}

to

{key1: "value1", key2: "value2"}

Answer 1

目前，您必须这样做：

{"key1" => "value1", "key2" => "value2"}
.map{|k, v| [k.to_sym, v]}.to_h
# => {:key1=>"value1", :key2=>"value2"}

稍微更高效的是：

{"key1" => "value1", "key2" => "value2"}
.each_with_object({}){|(k, v), h| h[k.to_sym] = v}
# => {:key1=>"value1", :key2=>"value2"}

在不久的将来，Hash#transform_keys可能会可用。