hash fetch default vs block with no argument

hash_fetch_vs_block_with_no_argument.rb

require 'benchmark'

Benchmark.bm do |x|
  x.report("fetch with block") do
    1_000_000.times do
      attrs = {}
      attrs.fetch('xyz') { 'abc' }
    end
  end
  
  x.report("fetch with default") do
    1_000_000.times do
      attrs = {}
      attrs.fetch('xyz', 'abc')
    end
  end
end

# Results
#                  user     system      total        real
# fetch with block  0.200000   0.000000   0.200000 (  0.204277)
# fetch with default  0.160000   0.000000   0.160000 (  0.155238)