sorting - Sort strings and numbers in Ruby

Question

I want to sort an array by strings first and then numbers. How do I do this?

Answer 1

Sort an array of mixed numbers and strings by putting the numbers first, and in order, followed by the strings second, and in order.

>> a = [1, 2, "b", "a"]

>> a.partition{|x| x.is_a? String}.map(&:sort).flatten
=> ["a", "b", 1, 2]