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

You can compare them two by two:

[["a", 3],["b",53],["c",2]].each_cons(2).all?{|p, n| (p <=> n) != 1} # => true