Ruby non_empty? method

Question

I want to use expression:

!([1,2,3] & [43,5]).empty?
=> false
!([1,2,3] & [3,5]).empty?
=> true

to check if two arrays contains at least one common value. And I wonder if there is a better way of doing it? Maybe something like:

 ([1,2,3] & [3,5]).non_empty?

How to write non_empty? method?

Answer 1

Technically answered:

class Array
    def non_empty?
        !self.empty?
    end
end

puts [1].non_empty?

Though .any? already seems to exist for that purpose (see JHurra's answer)

Answer 2

([1,2,3] & [3,5]).any?

Answer 3

An equivalent query would be asking if the array is not blank. The equivalent to !array.blank? is array.present?

Check http://api.rubyonrails.org/classes/Object.html#M000280