Aurel Branzeanu texpert
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| For a parametrized approach, you can add a helper into ApplicationHelper: | |
| ``` | |
| def svg_tag(options = {}, class:) | |
| tag.svg(xmlns: 'http://www.w3.org/2000/svg', class:, **options) do | |
| yield if block_given? | |
| end | |
| end | |
| ``` |
texpert
/ const_lookup.rb
Last active
June 24, 2022 16:57
Ruby constant lookup vs const_get benchmark
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| Warming up -------------------------------------- | |
| lookup 1.241M i/100ms | |
| const_get 1.111M i/100ms | |
| Calculating ------------------------------------- | |
| lookup 13.510M (± 0.7%) i/s - 135.305M in 10.031861s | |
| const_get 11.373M (± 0.5%) i/s - 114.446M in 10.072033s | |
| with 95.0% confidence | |
| Comparison: | |
| lookup: 13509513.8 i/s |
texpert
/ DCI_and_MRI_methods_caching
Created
March 19, 2021 10:39
DCI pattern in Ruby and methods cache in MRI
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| An interesting line-up of articles about DCI pattern in Ruby and methods cache in MRI | |
| (one of the reasons to avoid OpenStruct is methods cache invalidation on every OpenStruct instantiation): | |
| https://tonyarcieri.com/dci-in-ruby-is-completely-broken | |
| https://dec0de.me/2013/02/dci-performance | |
| https://jamesgolick.com/2013/4/14/mris-method-caches.html | |
| https://shopify.engineering/17489064-tuning-rubys-global-method-cache | |
| https://mensfeld.pl/2015/04/ruby-global-method-cache-invalidation-impact-on-a-single-and-multithreaded-applications/ | |
| https://tenderlovemaking.com/2015/12/23/inline-caching-in-mri.html |
texpert
/ String interpolation
Last active
June 17, 2022 01:08
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| /bin/bash -c "/Users/thunder/.rvm/bin/rvm ruby-2.3.7@mejuri do /Users/thunder/.rvm/rubies/ruby-2.3.7/bin/ruby '/Users/thunder/Library/Application Support/JetBrains/RubyMine2020.2/scratches/scratch.rb'" | |
| Warming up -------------------------------------- | |
| Direct interpolation 426.585k i/100ms | |
| Percent interpolation | |
| 232.103k i/100ms | |
| Plus concatenation 507.047k i/100ms | |
| Calculating ------------------------------------- | |
| Direct interpolation 4.393M (± 0.3%) i/s - 43.938M in 10.005452s | |
| Percent interpolation |
texpert
/ Old Ruby & OpenSSL install
Created
April 10, 2020 09:51
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| brew install rbenv/tap/[email protected] | |
| rvm reinstall ruby-2.2.0 --with-openssl-dir='/usr/local/opt/[email protected]' |
texpert
/ AS symbolize_keys vs Hash.keys.map.to_sym
Created
December 13, 2019 12:01
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| /bin/bash -c "/home/thunder/.rvm/bin/rvm ruby-2.5.1 do /home/thunder/.rvm/rubies/ruby-2.5.1/bin/ruby /home/thunder/.RubyMine2019.3/config/scratches/scratch_1.rb" | |
| Warming up -------------------------------------- | |
| Active Support symbolize_keys | |
| 37.892k i/100ms | |
| Hash keys map to_sym 60.148k i/100ms | |
| Calculating ------------------------------------- | |
| Active Support symbolize_keys | |
| 562.840k (± 1.4%) i/s - 5.608M in 10.047830s | |
| Hash keys map to_sym 767.850k (± 1.1%) i/s - 7.699M in 10.048546s | |
| with 95.0% confidence |
texpert
/ PORO vs attr_extras
Last active
June 17, 2022 01:09
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| 13:30 $ rvm ls | |
| ruby-2.4.9 [ x86_64 ] | |
| => ruby-2.5.1 [ x86_64 ] | |
| * ruby-2.5.5 [ x86_64 ] | |
| ruby-2.5.7 [ x86_64 ] | |
| ruby-2.6.5 [ x86_64 ] | |
| 13:28 $ ruby poro_vs_attr_extras.rb | |
| Warming up -------------------------------------- |
texpert
/ flatten vs flat_map
Last active
June 17, 2022 01:10
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| # frozen_string_literal: true | |
| # Install the necessary gems: | |
| # gem install benchmark-ips | |
| # gem install kalibera | |
| require 'benchmark/ips' | |
| ARRAY = (1..100).to_a.map { |e| [e, e] } |
texpert
/ array2hash_each_inject_etc.rb
Last active
June 17, 2022 01:11
Each, each_with_object, inject, merge Array to Hash transforming comparison
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| Warming up -------------------------------------- | |
| assign&return 21.225k i/100ms | |
| each 23.473k i/100ms | |
| merge 3.283k i/100ms | |
| merge! 9.870k i/100ms | |
| map with tuples 19.764k i/100ms | |
| each_with_object 21.362k i/100ms | |
| Calculating ------------------------------------- | |
| assign&return 229.939k (± 5.2%) i/s - 2.314M in 10.087643s | |
| each 256.244k (± 7.3%) i/s - 2.559M in 10.028367s |
texpert
/ Active Record persistence
Last active
October 7, 2017 13:59
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| Legend: | |
| => in the meaning column means there's a non-boolean return value | |
| empty columns in Prior Name mean the method didn't exist before | |
| * before a new method name means it's an alias to the prior method | |
| Prior Name New Name Meaning | |
| attribute_was(attr_name) *attribute_in_database(attr_name) current database value of attribute | |
| attribute_change(attr_name) *attribute_change_to_be_saved => the changed value for attribute | |
| attribute_changed?(attr_name) *will_save_change_to_attribute?(attr_name) was attribute modified since last save |
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