(get-in {:a {:cc 2} :b {:dd 3}} [:a] 42) # => {:cc 2} (get-in {:a {:cc 2} :b {:dd 3}} [:a :cc] 42) # => 2 (get-in {:a {:cc 2} :b {:dd 3}} [0] 42) # => 42 (get-in {:a {:cc 2} :b {:dd 3}} [:z] 42) # => 42