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

arr = ["Jason", "Jason", "Teresa", "Judah", "Michelle", "Judah", "Judah", "Allison"]

arr.uniq.inject({}) {|a, e| a.merge({e => arr.count(e)})}

Time elapsed 0.028 milliseconds

interestingly, stupidgeek's implementation benchmarked:

Time elapsed 0.041 milliseconds

and the winning answer:

Time elapsed 0.011 milliseconds

:)