[Ruby] guide to return statement

In Ruby language, the Return Statement in the ruby functions are interesting, let's wait e them as below:

Def concatenate (name_one = nil, name_two = "") return name_one + name_twoendname = concatenate "Wuhan", "Hubei" puts nameputs concatenate ("Shang" Hai ") def string_as_return (name = nil) Return "Hello, # {name}" endputs string_as_return () puts string_as_return ('kd ') def array_as_return (first_name, last_name) return first_name, last_nameendname = array_as_return ("Kevin", "Durant") puts name. to_sputs name. class