James Homer homerjam

command-line-printing

to print the file filename.pdf using the default printer:

lpr filename.pdf

you can also specify the printer name using -P printername:

lpr -P printername filename.pdf

Direct copy of pre-encoded file:

$ ffmpeg -i filename.mp4 -codec: copy -start_number 0 -hls_time 10 -hls_list_size 0 -f hls filename.m3u8

Requirements

Minikube requires that VT-x/AMD-v virtualization is enabled in BIOS. To check that this is enabled on OSX / macOS run:

sysctl -a | grep machdep.cpu.features | grep VMX

If there's output, you're good!

Prerequisites

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.~~

console.log wrap resolving for your wrapped console logs

I've heard this before:

What I really get frustrated by is that I cannot wrap console.* and preserve line numbers

We enabled this in Chrome DevTools via blackboxing a bit ago.

If you blackbox the script file the contains the console log wrapper, the script location shown in the console will be corrected to the original source file and line number. Click, and the full source is looking longingly into your eyes.

	'use strict'

	// ideal for use with AWS Lambda and native Node.js modules

	// requires Docker: https://docs.docker.com/engine/installation/

	/*
	Usage:
	node docker-npm.js install
	node docker-npm.js rebuild


	### Full command line options

	```
	ffmpeg -f gif -i FOO.gif -pix_fmt yuv420p -c:v libx264 -movflags +faststart -filter:v crop='floor(in_w/2)2:floor(in_h/2)2' BAR.mp4
	```

	### Notie

	* output mp4 is encoded with h264, support Firefox/Chrome/Safari in Windows, Mac OSX, Android, and iOS.

	THREE.TransformationShader = {
	defines: {},
	uniforms: {

	"tDiffuse": { type: "t", value: texture },
	"opacity": { type: "f", value: 1.0 },
	"translationX": { type: "f", value: 1.0 },
	"translationY": { type: "f", value: 1.0 },
	"translationZ": { type: "f", value: 1.0 },
	"scaleX": { type: "f", value: 1.0 },

	* {
	font-size: 12pt;
	font-family: monospace;
	font-weight: normal;
	font-style: normal;
	text-decoration: none;
	color: black;
	cursor: default;
	}