Skip to content

Instantly share code, notes, and snippets.

View MelSumner's full-sized avatar
💭
Making the world a more sensible place.

Melanie Sumner MelSumner

💭
Making the world a more sensible place.
View GitHub Profile
@isaacs
isaacs / node-and-npm-in-30-seconds.sh
Last active September 4, 2026 08:57
Use one of these techniques to install node and npm without having to sudo. Discussed in more detail at http://joyeur.com/2010/12/10/installing-node-and-npm/ Note: npm >=0.3 is *safer* when using sudo.
echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc
. ~/.bashrc
mkdir ~/local
mkdir ~/node-latest-install
cd ~/node-latest-install
curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1
./configure --prefix=~/local
make install # ok, fine, this step probably takes more than 30 seconds...
curl https://www.npmjs.org/install.sh | sh
@lopspower
lopspower / README.md
Last active August 23, 2026 05:16
Hexadecimal color code for transparency

Hexadecimal color code for transparency

Twitter

How to set transparency with hex value ?

For example, you want to set 40% alpha transparence to #000000 (black color), you need to add 66 like this #66000000.

All hex value from 100% to 0% alpha:

@iangreenleaf
iangreenleaf / gist:b206d09c587e8fc6399e
Last active August 1, 2026 05:57
Rails naming conventions

Rails naming conventions

General Ruby conventions

Class names are CamelCase.

Methods and variables are snake_case.

Methods with a ? suffix will return a boolean.

@silent1mezzo
silent1mezzo / 0fixup.md
Last active April 9, 2026 15:30 — forked from SethRobertson/index.md
On undoing, fixing, or removing commits in git

A git choose-your-own-adventure!

This document is an attempt to be a fairly comprehensive guide to recovering from what you did not mean to do when using git. It isn't that git is so complicated that you need a large document to take care or your particular problem, it is more that the set of things that you might have done is so large that different techniques are needed depending on exactly what you have done and what you want to have happen.

@jdjkelly
jdjkelly / gist:0bddf2e834b6d6bc2174
Last active February 26, 2026 10:29
Making Accessible Ember Components

Making Accessible Ember Components

Making the web accessible is important. We have ethical and, in some cases, legal obligations to ensuring access to all of users.

Luckily for us, it's easy to make an accessible Ember Component.

What are components?

To understand the accessibility story around Ember Components, we have to start by talking about Web Components. Ember Components are designed to be interoperable with the final Web Components API.

@kristianmandrup
kristianmandrup / Converting libraries to Ember CLI addons.md
Last active March 12, 2025 04:26
Guide to Developing Addons and Blueprints for Ember CLI

Converting libraries to Ember CLI addons

In this guide we will cover two main cases:

  • Ember specific library
  • vendor library

Ember library

The Ember library will assume that Ember has already ben loaded (higher in the loading order) and thus will assume it has access to the Ember API.

@ademilter
ademilter / .storybook
Last active September 7, 2021 12:11
postcss config for storybook
- webpack.config.js
- postcss.config.js
- config.js
- addons.js

Uses of "descendant" in the ARIA spec

Summary

  • unclear use/used on its own: 51
  • descendant element: 12
  • active descendant: 8
  • DOM descendant: 6
  • descendant node: 2
@eanakashima
eanakashima / refs.md
Last active December 9, 2020 18:45
List of references from "Observability is for User Happiness," performance.now() 2019 (Amsterdam), and "Observability for Web Performance," #perfmatters 2020
@BrianSipple
BrianSipple / ember-addon-readme-badge-template.md
Last active September 7, 2020 10:06
Useful Badges to Include in an Ember Addon's README
[![Latest NPM release][npm-badge]][npm-badge-url]
[![TravisCI Build Status][travis-badge-url]][travis-project-url]
[![CircleCI Build Status][circle-badge]][circle-badge-url]
[![Test Coverage][coveralls-badge]][coveralls-badge-url]
[![Code Climate][codeclimate-badge]][codeclimate-badge-url]
[![Ember Observer Score][ember-observer-badge]][ember-observer-badge-url]
[![License][license-badge]][license-badge-url]
[![Dependencies][dependencies-badge]][dependencies-badge-url] 
[![Dev Dependencies][devDependencies-badge]][devDependencies-badge-url]