轻松找到具有特定值的所有哈希值

Question

I have a following array of hashes

h = [{:foo=>:bar}, {:qqq=>:ppp}, {:xxx=>123}]

I want to find all hashes which Symbol in values.

Currently I use this approach, but I don't actually like it because I have to create array for each hash and extract the first element ( hash.values[0] ).

h.select { |hash| hash.values[0].is_a?(Symbol) }
# => [{:foo=>:bar}, {:qqq=>:ppp}]

Maybe there is something more elegant to do this?

Answer 1

If you don't want to use array, use hash)

h = { :foo=>:bar, :qqq=>:ppp, :xxx=>123 }
h.select { |k, v| v.is_a?(Symbol) }
=> { :foo=>:bar, :qqq=>:ppp }