How to save JSON objects into an array

i want to save objects into an array. I have JSON objects and I want to save every object in an array to access every element alone. Can anybody help me?

toArray = JSON.parse(res.body)

categ = Array.new
i = 0

toArray.each do |object|
newMyObject = MyObject.new(object)
categ = Array.new(i, newMyObject)
i = i+1
end