Find a key in nested hash ruby

def nested_hash_value(obj,key)
  if obj.respond_to?(:key?) && obj.key?(key)
    obj[key]
  elsif obj.respond_to?(:each)
    r = nil
    obj.find{ |*a| r=nested_hash_value(a.last,key) }
    r
  end
end

h = { foo:[1,2,[3,4],{a:{bar:42}}] }
p nested_hash_value(h,:bar)
#=> 42

Source: stackoverflow.com

Similar codes

1 vote190 views2 answers
Ruby iterate hash with index
Ruby
0 vote189 views1 answer
Rails ngrok blocked host
Ruby
1 vote174 views1 answer
Rails connect to remote database
Ruby
0 vote248 views1 answer
Ruby hash delete
Ruby
0 vote145 views0 answer
Ruby
2 votes228 views3 answers
Rails image tag
Ruby
0 vote192 views1 answer
Rspec create list
Ruby
0 vote185 views1 answer
Map each with index
Ruby
0 vote226 views5 answers
Return tuple or null
Ruby
0 vote201 views2 answers
Ruby hello world
Ruby