flip.rb

❯ cat flip.rb
require 'benchmark/ips'

DAYS = [:mon, :tue, :wed, :thur, :fri, :sat, :sun]
count = 0

DAYS.each do |day|
  if day == :tue .. day == :thur
    count += 1
  end
end

puts "2-dots: " + count.to_s

count = 0

DAYS.each do |day|
  if day == :tue ... day == :thur
    count += 1
  end
end

puts "3-dots " + count.to_s

count = 0
counting = false

DAYS.each do |day|
  if counting
    count += 1
    if day == :thur
      counting = false
    end
  else
    if day == :tue
      counting = true
      count += 1
    end
  end
end

puts "Manual: " + count.to_s

~/code
❯ ruby flip.rb
2-dots: 3
3-dots 3
Manual: 3