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Ruby

Sophie Rae
Sophie Rae
3,066 Points
Posted by Sophie Rae
Sophie Rae
3,066 Points

simple benchmarker question

Hi!

So I understand all the code in the simple benchmarker program apart from this bit:

benchmarker = SimpleBenchmarker.new benchmarker.run

What is the purpose of this in the code/what does it do?

Thanks :)

1 Answer

Kourosh Raeen
Kourosh Raeen
23,733 Points
Kourosh Raeen
Kourosh Raeen
23,733 Points

If I'm correct your question is about this Code Challenge: https://teamtreehouse.com/library/ruby-blocks/working-with-blocks/block-method-practice-custom-classes

The first line of the code you posted creates an instance of the SimpleBenchmarker class:

benchmarker = SimpleBenchmarker.new

Then in task 2 of the challenge you are asked to call the run method on that instance. The run method needs two arguments, a description and a block. The description should be a string and the block can be any block of code:

class SimpleBenchmarker
  def run(description, &block)
    start_time = Time.now
    block.call
    end_time = Time.now
    elapsed = end_time - start_time

    puts "\n#{description} results"
    puts "Elapsed time: #{elapsed} seconds"
  end
end

benchmarker = SimpleBenchmarker.new
benchmarker.run "Printing numbers from 1 to 100" do
  for number in (1..100) do
    puts "Now printing number {number}"
  end
end