How to count identical string elements in a Ruby array

Question

I have the following Array = [\"Jason\", \"Jason\", \"Teresa\", \"Judah\", \"Michelle\", \"Judah\", \"Judah\", \"Allison\"]

How do I produce a count for

Answer 1

Now using Ruby 2.2.0 you can leverage the itself method.

names = ["Jason", "Jason", "Teresa", "Judah", "Michelle", "Judah", "Judah", "Allison"]
counts = {}
names.group_by(&:itself).each { |k,v| counts[k] = v.length }
# counts > {"Jason"=>2, "Teresa"=>1, "Judah"=>3, "Michelle"=>1, "Allison"=>1}