Skip to content

Instantly share code, notes, and snippets.

@staltz
staltz / introrx.md
Last active Jan 16, 2022
The introduction to Reactive Programming you've been missing
View introrx.md
@ks2211
ks2211 / Phoenix esbuild with Tailwind and Fontawesome
Last active Jan 9, 2022
Phoenix with esbuild, fortawesome, and tailwindcss
View Phoenix esbuild with Tailwind and Fontawesome
Phoenix esbuild with Tailwind+Fontawesome
@0XDE57
0XDE57 / config.md
Last active Jan 7, 2022
Firefox about:config privacy settings
View config.md

ABOUT

about:config settings to harden the Firefox browser. Privacy and performance enhancements.
To change these settings type 'about:config' in the url bar. Then search the setting you would like to change and modify the value. Some settings may break certain websites from functioning and rendering normally. Some settings may also make firefox unstable.

I am not liable for any damages/loss of data.

Not all these changes are necessary and will be dependent upon your usage and hardware. Do some research on settings if you don't understand what they do. These settings are best combined with your standard privacy extensions (HTTPS Everywhere, NoScript/Request Policy, uBlock origin, agent spoofing, Privacy Badger etc), and all plugins set to "Ask To Activate".

View capybara cheat sheet
=Navigating=
visit('/projects')
visit(post_comments_path(post))
=Clicking links and buttons=
click_link('id-of-link')
click_link('Link Text')
click_button('Save')
click('Link Text') # Click either a link or a button
click('Button Value')
@addyosmani
addyosmani / README.md
Last active Jan 5, 2022 — forked from 140bytes/LICENSE.txt
108 byte CSS Layout Debugger
View README.md

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

View trello-css-guide.md

Hello, visitors! If you want an updated version of this styleguide in repo form with tons of real-life examples… check out Trellisheets! https://github.com/trello/trellisheets


Trello CSS Guide

“I perfectly understand our CSS. I never have any issues with cascading rules. I never have to use !important or inline styles. Even though somebody else wrote this bit of CSS, I know exactly how it works and how to extend it. Fixes are easy! I have a hard time breaking our CSS. I know exactly where to put new CSS. We use all of our CSS and it’s pretty small overall. When I delete a template, I know the exact corresponding CSS file and I can delete it all at once. Nothing gets left behind.”

You often hear updog saying stuff like this. Who’s updog? Not much, who is up with you?

@evancz
evancz / data-interchange.md
Last active Dec 1, 2021
Why do I have to write JSON decoders in Elm?
View data-interchange.md

A vision for data interchange in Elm

How do you send information between clients and servers? What format should that information be in? What happens when the server changes the format, but the client has not been updated yet? What happens when the server changes the format, but the database cannot be updated?

These are difficult questions. It is not just about picking a format, but rather picking a format that can evolve as your application evolves.

Literature Review

By now there are many approaches to communicating between client and server. These approaches tend to be known within specific companies and language communities, but the techniques do not cross borders. I will outline JSON, ProtoBuf, and GraphQL here so we can learn from them all.

@wvengen
wvengen / README.md
Last active Dec 1, 2021
Ruby memory analysis over time
View README.md

Finding a Ruby memory leak using a time analysis

When developing a program in Ruby, you may sometimes encounter a memory leak. For a while now, Ruby has a facility to gather information about what objects are laying around: ObjectSpace.

There are several approaches one can take to debug a leak. This discusses a time-based approach, where a full memory dump is generated every, say, 5 minutes, during a time that the memory leak is showing up. Afterwards, one can look at all the objects, and find out which ones are staying around, causing the

@mnutt
mnutt / Instrument Anything in Rails 3.md
Created Sep 6, 2010
How to use Rails 3.0's new notification system to inject custom log events
View Instrument Anything in Rails 3.md

Instrument Anything in Rails 3

With Rails 3.0 released a few weeks ago I've migrated a few apps and I'm constantly finding useful new improvements. One such improvement is the ability to log anything in the same way that Rails internally logs ActiveRecord and ActionView. By default Rails 3 logs look slightly spiffier than those produced by Rails 2.3: (notice the second line has been cleaned up)

Started GET "/" for 127.0.0.1 at Mon Sep 06 01:07:11 -0400 2010
  Processing by HomeController#index as HTML
  User Load (0.2ms)  SELECT `users`.* FROM `users` WHERE (`users`.`id` = 3) LIMIT 1
  CACHE (0.0ms)  SELECT `users`.* FROM `users` WHERE (`users`.`id` = 3) LIMIT 1
Rendered layouts/_nav.html.erb (363.4ms)
@nstielau
nstielau / default.rb
Created May 18, 2011
A simple Chef recipe to install Jenkins
View default.rb
#
# Cookbook Name:: jenkins
# Recipe:: default
#
# https://wiki.jenkins-ci.org/display/JENKINS/Installing+Jenkins+on+Ubuntu
# This is super-simple, compared to the other Chef cookbook I found
# for Jenkins (https://github.com/fnichol/chef-jenkins).
#
# This doesn't include Chef libraries for adding Jenkin's jobs via