Check to see if an array is already sorted?

Question

I know how to put an array in order, but in this case I just want to see if it is in order. An array of strings would be the easiest, I imagine, and answer

Answer 1

def ascending? (array)
    yes = true
    array.reduce { |l, r| break unless yes &= (l[0] <= r[0]); l }
    yes
end


def descending? (array)
    yes = true
    array.reduce { |l, r| break unless yes &= (l[0] >= r[0]); l }
    yes
end