Count words
- each
words = ["cat", "dog", "snake", "cat", "bug", "ant", "cat", "dog"]
count = {} of String => Int32
words.each { |word|
if !count.has_key?(word)
count[word] = 0
end
count[word] += 1
}
count.each { |word, cnt|
puts "#{word} #{cnt}"
}