(Ruby) How do you check whether a range contains a subset of another range?

Question

If I have two ranges that overlap:

x = 1..10
y = 5..15

When I say:

puts x.include? y 

the output is:

Answer 1

But if I want it to be "true" when there is partial overlap between two ranges, how would I write that?

You can convert the ranges to an array, and use the & operator (conjunction). This returns a new array with all the elements occuring in both arrays. If the resulting array is not empty, that means, that there are some overlapping elements:

def overlap?(range_1, range_2)
  !(range_1.to_a & range_2.to_a).empty?
end