Simple Ruby stopwatch

stopwatch.rb

class Stopwatch
  def initialize
    @start_time = Process.clock_gettime(Process::CLOCK_MONOTONIC)
  end

  def elapsed_time
    Process.clock_gettime(Process::CLOCK_MONOTONIC) - @start_time
  end
end


## Usage

sw = Stopwatch.new
sleep(2)
puts sw.elapsed_time

## Output
# 2.000997