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building itsy bitsy parts of the internet that grow

Ryan McGeary rmm5t

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building itsy bitsy parts of the internet that grow
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@rmm5t
rmm5t / _pg_searchable.md
Last active September 9, 2019 16:47
@rmm5t
rmm5t / benchmark_array_product.rb
Created June 30, 2019 14:23
Benchmark Array#product
require 'benchmark'
def test_nested_loop
1.upto(20) do |x|
1.upto(30) do |y|
x * y
end
end
end
@rmm5t
rmm5t / benchmark_lazy.rb
Last active June 23, 2019 18:58
Benchmark enumerator patterns
require 'benchmark'
array = (1..1000).to_a
n = 1000
Benchmark.bmbm do |x|
x.report("lazy") { n.times { array.lazy.select(&:even?).map { |i| i / 2 }.to_a } }
x.report("double-pass") { n.times { array.select(&:even?).map { |i| i / 2 } } }
x.report("nested conditional") do
n.times do
@rmm5t
rmm5t / benchmark_command_object_vs_poro.rb
Last active June 18, 2019 23:42
Benchmarking command object pattern vs PORO
require 'benchmark'
require 'active_support/all'
class CommandObject
def self.execute_with(arg)
new(arg).tap(&:run)
end
def initialize(arg)
@arg = arg
@rmm5t
rmm5t / benchmark_local_var_vs_instance_var.rb
Last active June 18, 2019 20:35
Benchmark local var caching vs direct method access
require 'benchmark'
require 'active_support/all'
Source = Struct.new(:value, keyword_init: true)
def local_var_test(source)
value = source.value
return if value.nil?
value
end
@rmm5t
rmm5t / benchmark_instance_var_vs_delegate.rb
Last active June 18, 2019 23:38
Benchmark instance variable vs delegation
require 'benchmark'
require 'active_support/all'
Source = Struct.new(:value, keyword_init: true)
class InstanceVarTest
attr_reader :source, :value
def initialize(source)
@source = source
@rmm5t
rmm5t / benchmark_tag_vs_interpolation.rb
Last active June 18, 2019 20:36
Benchmarking tag vs content_tag vs string interpolation
require 'benchmark'
require 'action_view'
include ActionView::Helpers::TagHelper
include ERB::Util
def output_buffer=(s)
end
def output_buffer
end
@rmm5t
rmm5t / benchmark_interpolation_vs_join.rb
Created May 28, 2019 13:39
Benchmark String interpolation vs Array#join
require 'benchmark'
def test_interpolation(x, y)
"X#{x}Y#{y}"
end
def test_join(x, y)
["X", x, "Y", y].join
end
@rmm5t
rmm5t / benchmark_style_multiple_comparison.rb
Last active June 18, 2019 20:36
Style/MultipleComparison benchmark
require 'benchmark'
def test_conditionals(n)
n == 1 || n == 2 || n == 3 || n == 4 || n == 5 || n == 6 || n == 7
end
def test_include(n)
[1, 2, 3, 4, 5, 6, 7].include?(n)
end
@rmm5t
rmm5t / _common_rake_tasks.md
Last active March 11, 2019 21:13
Common rake tasks I use on Rails projects