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

1.9.3p194 :001 > ["", "A", "B", "C", ""].reject(&:empty?)

=> ["A", "B", "C"]

Answer 2

Here is a solution if you have mixed types in your array:

[nil,"some string here","",4,3,2]

Solution:

[nil,"some string here","",4,3,2].compact.reject{|r| r.empty? if r.class == String}

Output:

=> ["some string here", 4, 3, 2]