Testing implicit VS explicit returns

return_test.rb

require 'benchmark/ips'

Benchmark.ips do |x|
  x.config(warmup: 1, time: 5)

  def test1
    a = [:foo, :bar, :baz, :omg, :wtf, :gtfo]
    a.map(&:to_s)
  end

  def test2
    return [:foo, :bar, :baz, :omg, :wtf, :gtfo].map(&:to_s)
  end

  x.report('implicit return') do
    test1
  end

  x.report('explicit return') do
    test2
  end

  x.compare!
end