Phil Hansch phansch

Ruby: The future of frozen string literals

What is a literal?

In programming languages, literals are textual representations of values in the source code. This is a syntactical concept.

Some examples:

7 # integer literal

Tree style tab custom CSS with auto-hide

Install Tree Style Tabs Firefox extensions.
Install userChrome.css (see file content below below)
- Linux
  - cd to ~/.mozilla/firefox/[your profile id].default/
  - create folder chrome if it doesn’t exist
  - put userChrome.css in it
- Windows
  - press Win+R

Install and Create Emulators using AVDMANAGER and SDKMANAGER

TL;DR

For an emulator that mimics a Pixel 5 Device with Google APIs and ARM architecture (for an M1/M2 Macbook):

List All System Images Available for Download: sdkmanager --list | grep system-images
Download Image: sdkmanager --install "system-images;android-30;google_atd;arm64-v8a"

Rust and Travis CI cache

Using Travis CI's cache is very useful and helps cut Rust job times way, way down. However, the way that the default caching for Cargo is set up means it will quickly bloat.

Travis currently checks ~/.cargo and target/ for any changes from the current cache after a build. There will always be changes in target/ if the source has changed, which it usually does when a Travis build runs. This means new incremental object files, fingerprints, and build script compilation files are being added to the cache every build.

Improved YARD CHEATSHEET http://yardoc.org

forked from https://gist.github.com/chetan/1827484 which is from early 2012 and contains outdated information.

Templates to remind you of the options and formatting for the different types of objects you might want to document using YARD.

	name: Node CI

	on:
	push:
	tags:
	- 'v*'

	jobs:
	upload-release:

	#!/usr/bin/env zsh
	#
	# See the following AskUbuntu question for why this is a thing
	# https://askubuntu.com/questions/1024281/dell-xps-13-9370-bluetooth-issues/1148484#1148484
	#
	# As the overwritten files are owned by the linux-firmware package you may want to add this
	# script to an @reboot cron of the root user.
	#
	# This script uses the Windows driver package as the src of the firmware bin files. This can
	# be acquired from https://www.dell.com/support/home/uk/en/ukbsdt1/drivers/driversdetails?driverId=1JVK3

	# This replaces conditions like: `case …; when …; when …; else raise "Nothing matched!"` if an exact match is all you need.

	def cond(input, hash)
	hash.fetch(input) { raise "No branch for #{input.inspect}!" }.call
	end

	input = :good
	cond(input,
	good: -> { puts "So good!" },
	bad: -> { puts "So bad!" },

	#/bin/sh

	speed="0.7"

	mkdir "speed-${speed}x"

	for f in *.mp3
	do ffmpeg -i "$f" -filter:a "atempo=${speed}" "./speed-${speed}x/$f"
	done

	#!/usr/bin/node
	const Promise = require('bluebird')
	const config = require('./config.json')
	const knex = require('./lib/knex')(config.database).connection()


	const mock = () => ({ user_id: Math.floor(Math.random() * 999) + 1, payload_type: 'foo', attributes: JSON.stringify({}) })


	const before = (t) => {