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hacking stuff

Naveed Ahmad naveed-ahmad

🏋️‍♂️
hacking stuff
  • Lahore,Pakistan
  • 00:28 (UTC +05:00)
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@mankind
mankind / rails-jsonb-queries
Last active April 14, 2025 05:43
Ruby on Rails-5 postgresql-9.6 jsonb queries
http://stackoverflow.com/questions/22667401/postgres-json-data-type-rails-query
http://stackoverflow.com/questions/40702813/query-on-postgres-json-array-field-in-rails
#payload: [{"kind"=>"person"}]
Segment.where("payload @> ?", [{kind: "person"}].to_json)
#data: {"interest"=>["music", "movies", "programming"]}
Segment.where("data @> ?", {"interest": ["music", "movies", "programming"]}.to_json)
Segment.where("data #>> '{interest, 1}' = 'movies' ")
Segment.where("jsonb_array_length(data->'interest') > 1")
@naveed-ahmad
naveed-ahmad / get_character.rb
Created January 16, 2017 11:52 — forked from O-I/get_character.rb
Ruby Character to Unicode Converter
def get_character(hexnum)
char = ''
char << hexnum.to_i(16)
end
@lawso017
lawso017 / mentionable_trix.js.coffee
Last active November 14, 2024 14:26
@mentions with trix-editor and selectize.js
window.addEventListener "trix-initialize", (e) =>
Utility.TrixMentions.prepare($(e.target))
@fernandoaleman
fernandoaleman / fix-libv8-mac.txt
Created May 5, 2016 15:14
Fixing libv8 and therubyracer on Mac
brew tap homebrew/versions
brew install v8-315
gem install libv8 -v '3.16.14.13' -- --with-system-v8
gem install therubyracer -- --with-v8-dir=/usr/local/opt/v8-315
bundle install
@brianhempel
brianhempel / bench_rails_memory_usage.rb
Last active March 25, 2025 18:43
A script to test the memory usage of your Rails application over time. It will run 30 requests against the specified action and report the final RSS. Choose the URL to hit on line 45 and then run with `ruby bench_rails_memory_usage.rb`.
require "net/http"
def start_server
# Remove the X to enable the parameters for tuning.
# These are the default values as of Ruby 2.2.0.
@child = spawn(<<-EOC.split.join(" "))
XRUBY_GC_HEAP_FREE_SLOTS=4096
XRUBY_GC_HEAP_INIT_SLOTS=10000
XRUBY_GC_HEAP_GROWTH_FACTOR=1.8
XRUBY_GC_HEAP_GROWTH_MAX_SLOTS=0
@karmi
karmi / .gitignore
Last active March 26, 2025 08:35
Example Nginx configurations for Elasticsearch (https://www.elastic.co/blog/playing-http-tricks-nginx)
nginx/
!nginx/.gitkeep
!nginx/logs/.gitkeep
src/
tmp/
@addyosmani
addyosmani / README.md
Last active April 23, 2025 11:39 — forked from 140bytes/LICENSE.txt
108 byte CSS Layout Debugger

CSS Layout Debugger

A tweet-sized debugger for visualizing your CSS layouts. Outlines every DOM element on your page a random (valid) CSS hex color.

One-line version to paste in your DevTools

Use $$ if your browser aliases it:

~ 108 byte version

@xem
xem / codegolf.md
Last active January 2, 2025 16:05
JS code golfing

codegolf JS

Mini projects by Maxime Euzière (xem), subzey, Martin Kleppe (aemkei), Mathieu Henri (p01), Litterallylara, Tommy Hodgins (innovati), Veu(beke), Anders Kaare, Keith Clark, Addy Osmani, bburky, rlauck, cmoreau, maettig, thiemowmde, ilesinge, adlq, solinca, xen_the,...

(For more info and other projects, visit http://xem.github.io)

(Official Slack room: http://jsgolf.club / join us on http://register.jsgolf.club)

@naveed-ahmad
naveed-ahmad / rails_resources.md
Created March 12, 2014 16:32 — forked from jookyboi/rails_resources.md
Rails-related Gems and guides to accelerate your web project.

Gems

  • Bundler - Bundler maintains a consistent environment for ruby applications. It tracks an application's code and the rubygems it needs to run, so that an application will always have the exact gems (and versions) that it needs to run.
  • rabl - General ruby templating with json, bson, xml, plist and msgpack support
  • Thin - Very fast and lightweight Ruby web server
  • Unicorn - Unicorn is an HTTP server for Rack applications designed to only serve fast clients on low-latency, high-bandwidth connections and take advantage of features in Unix/Unix-like kernels.
  • SimpleCov - SimpleCov is a code coverage analysis tool for Ruby 1.9.
  • Zeus - Zeus preloads your Rails app so that your normal development tasks such as console, server, generate, and specs/tests take less than one second.
  • [factory_girl](h
@stevenharman
stevenharman / sidekiq.rb
Last active March 6, 2020 17:35
The best solution I've found for reliably configuring Sidekiq's ActiveRecord connection pool size on Heroku.
# /config/initializers/sidekiq.rb
current_web_concurrency = Proc.new do
web_concurrency = ENV['WEB_CONCURRENCY']
web_concurrency ||= Puma.respond_to?
(:cli_config) && Puma.cli_config.options.fetch(:max_threads)
web_concurrency || 16
end
local_redis_url = Proc.new do