Koronen · August 29, 2015 13:57
diff --git a/array_append_vs_contatenate.rb b/array_append_vs_contatenate.rb
 require 'benchmark'

 n = 2000000
 Benchmark.bm do |x|
  arr = 1.upto(1000).to_a
  x.report('<<') do
    1.upto(n) do |i|
      arr << i
    end
  end

  arr = 1.upto(1000).to_a
  x.report('+ ') do
    1.upto(n) do |i|
      arr + [i]
    end
  end
 end
diff --git a/stdout.log b/stdout.log
       user     system      total        real
 <<  0.350000   0.010000   0.360000 (  0.370955)
 +   8.010000   0.010000   8.020000 (  8.030394)