Ruby: How can I convert an array of data to hash and to json format?

Question

I am very new to Ruby array and hash manipulation.

How can I do this simple transformation?

array = [#<struct id=1, car='red'>, #<struct id=2, car='yellow'>, #<struct id=3, car='green'>]

desired output in json:

[{id : 1, car : 'red'} , {id:2, car :'yellow'} ,{id:3 , car: "green"}]

Does anyone have any hints?

Answer 1

array.map { |o| Hash[o.each_pair.to_a] }.to_json