How do I remove blank elements from an array?

Question

I have the following array

cities = [\"Kathmandu\", \"Pokhara\", \"\", \"Dharan\", \"Butwal\"]

I want to remove blank elements from the ar

Answer 1

Plain Ruby:

values = [1,2,3, " ", "", "", nil] - ["", " ", nil]
puts values # [1,2,3]