single-parameter-dig-versus-fetch-versus-bracket-accessor.rb

require "benchmark/ips"

puts "when the key is in the hash"

Benchmark.ips do |x|
  h = { foo: :bar }

  x.report("dig with single parameter") do
    h.dig(:foo)
  end

  x.report("fetch with single parameter") do
    h.fetch(:foo)
  end

  x.report("#[]") do
    h[:foo]
  end

  x.compare!
end

puts "when the key isn't in the hash"

Benchmark.ips() do |x|
  h = { foo: :bar }

  x.report("dig with single parameter") do
    h.dig(:baz)
  end

  x.report("fetch with single parameter") do
    h.fetch(:baz, nil)
  end

  x.report("#[]") do
    h[:baz]
  end

  x.compare!
end