Try it

Paste some text. The statistics below are computed by a Soli controller, inside the Worker that answered this request.

Most frequent

1. fast × 3
2. soli × 2
3. the × 2
4. edge × 2
5. is × 2

Longest word: close

The code

words = text.downcase.split(" ")
  .map { |w| w.gsub("[^a-z0-9'-]", "") }
  .filter { |w| w.length > 0 }
counts = {}
words.each do |w|
  counts[w] = (counts[w] ?? 0) + 1
end
top = counts.keys.sort_by { |w| -counts[w] }.take(5)