Pete Richardson denovo

Quick examples

feat: new feature
fix(scope): bug in scope
feat!: breaking change / feat(scope)!: rework API
chore(deps): update dependencies

Commit types

build: Changes that affect the build system or external dependencies (example scopes: gulp, broccoli, npm)
ci: Changes to CI configuration files and scripts (example scopes: Travis, Circle, BrowserStack, SauceLabs)
chore: Changes which doesn't change source code or tests e.g. changes to the build process, auxiliary tools, libraries

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

Stuff I wish I'd known sooner about service workers

I recently had several days of extremely frustrating experiences with service workers. Here are a few things I've since learned which would have made my life much easier but which isn't particularly obvious from most of the blog posts and videos I've seen.

I'll add to this list over time – suggested additions welcome in the comments or via twitter.com/rich_harris.

Use Canary for development instead of Chrome stable

~~Chrome 51 has some pretty wild behaviour related to console.log in service workers. Canary doesn't, and it has a load of really good service worker related stuff in devtools.~~

Processing JSON using jq

jq is useful to slice, filter, map and transform structured json data.

Installing jq

On Mac OS

brew install jq

As soon as I saw the new YouTube Player and its new morphing play/pause button, I wanted to understand how it was made and replicate it myself.

From my analysis it looks like YouTube is using [SMIL animations][1]. I could not get those animations to work on browsers other than Chrome and it appears [that they are deprecated and will be removed][2]. I settled for the following technique:

Define the icon path elements inside a defs element so that they are not drawn.
Draw one icon by defining a use element whose xlink:href attribute points to one of the paths defined in the previous step. Simply [changing this attribute to point to the other icon is enough to swap them out][3], but this switch is not animated. To do that,
Replace the use with the actual path when the page is loaded.

Encoding Video

Installing

Install FFmpeg with homebrew. You'll need to install it with a couple flags for webm and the AAC audio codec.

brew install ffmpeg --with-libvpx --with-libvorbis --with-fdk-aac --with-opus

	[
	{
	"code": "us-east-1",
	"region": "US East",
	"city": "Virginia",
	"lat": 38.9940541,
	"long": -77.4524237,
	"country": "US"
	},
	{

	#!/bin/sh
	# parameters: input, output

	# make a 256-colors palette first
	palettefull=$( mktemp --suffix=.png )
	ffmpeg -i "$1" -vf 'palettegen' -y "$palettefull"

	# quantize the palette (palettegen's builting limiter
	# tries to preserve too much similar shades)
	palettequant=$( mktemp --suffix=.png )

	import Vue from 'vue'
	import { validationMixin } from 'vuelidate'
	import { required, minLength } from 'vuelidate/lib/validators'

	export default function (store) {
	const validator = new Vue({
	mixins: [
	validationMixin
	],
	computed: {

	var HelloModal = React.createClass({
	getInitialState: function() {
	return {
	visible: false
	};
	},
	componentDidMount: function() {
	var self = this;
	$(window).on('modal.visible', function(ev){
	self.setState({visible: true});