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@mjackson
mjackson / color-conversion-algorithms.js
Last active June 8, 2024 01:27
RGB, HSV, and HSL color conversion algorithms in JavaScript
/**
* Converts an RGB color value to HSL. Conversion formula
* adapted from http://en.wikipedia.org/wiki/HSL_color_space.
* Assumes r, g, and b are contained in the set [0, 255] and
* returns h, s, and l in the set [0, 1].
*
* @param Number r The red color value
* @param Number g The green color value
* @param Number b The blue color value
* @return Array The HSL representation
@guifromrio
guifromrio / compress-pdf-with-gs.md
Created August 30, 2013 14:39
Compress PDF files with ghostscript

This can reduce files to ~15% of their size (2.3M to 345K, in one case) with no obvious degradation of quality.

ghostscript -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/printer -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf

Other options for PDFSETTINGS:

  • /screen selects low-resolution output similar to the Acrobat Distiller "Screen Optimized" setting.
  • /ebook selects medium-resolution output similar to the Acrobat Distiller "eBook" setting.
  • /printer selects output similar to the Acrobat Distiller "Print Optimized" setting.
  • /prepress selects output similar to Acrobat Distiller "Prepress Optimized" setting.
@nickloewen
nickloewen / bret_victor-reading_list.md
Last active June 9, 2024 14:39
Bret Victor’s Reading List

This is a plain-text version of Bret Victor’s reading list. It was requested by hf on Hacker News.


Highly recommended things!

This is my five-star list. These are my favorite things in all the world.

A few of these works have had an extraordinary effect on my life or way of thinking. They get a sixth star. ★

@xem
xem / codegolf.md
Last active June 8, 2024 22:28
JS code golfing

codegolf JS

Mini projects by Maxime Euzière (xem), subzey, Martin Kleppe (aemkei), Mathieu Henri (p01), Litterallylara, Tommy Hodgins (innovati), Veu(beke), Anders Kaare, Keith Clark, Addy Osmani, bburky, rlauck, cmoreau, maettig, thiemowmde, ilesinge, adlq, solinca, xen_the,...

(For more info and other projects, visit http://xem.github.io)

(Official Slack room: http://jsgolf.club / join us on http://register.jsgolf.club)

@addyosmani
addyosmani / README.md
Last active April 2, 2024 20:18 — forked from 140bytes/LICENSE.txt
108 byte CSS Layout Debugger

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

@tronsha
tronsha / installphp7.sh
Last active October 13, 2023 00:13
Install PHP7 to Ubuntu
#!/bin/bash
if [[ $EUID -ne 0 ]]; then
echo "This script must be run as root" 1>&2
exit 1
fi
apt-get update
apt-get install -y git-core autoconf bison libxml2-dev libbz2-dev libmcrypt-dev libcurl4-openssl-dev libltdl-dev libpng-dev libpspell-dev libreadline-dev make
mkdir -p /etc/php7/conf.d
mkdir -p /etc/php7/cli/conf.d
mkdir /usr/local/php7
@danharper
danharper / CatchAllOptionsRequestsProvider.php
Last active April 20, 2024 01:53
Lumen with CORS and OPTIONS requests
<?php namespace App\Providers;
use Illuminate\Support\ServiceProvider;
/**
* If the incoming request is an OPTIONS request
* we will register a handler for the requested route
*/
class CatchAllOptionsRequestsProvider extends ServiceProvider {
@praphull27
praphull27 / Jenkins_Protractor_Headless_Chrome_Setup_Ubuntu_14.04.md
Last active April 9, 2024 11:44
Jenkins, Protractor and Headless Chrome Browser Setup on Ubuntu 14.04

Jenkins, Protractor and Headless Chrome Browser Setup on Ubuntu 14.04

Update Ubuntu

sudo apt-get update
sudo apt-get upgrade

Install Java

@nrollr
nrollr / MySQL.md
Last active October 28, 2020 02:53
Install MySQL on El Capitan using Homebrew

Install MySQL on OS X El Capitan

Normally the installation of MySQL can be achieved with a single command, which executes a script provided by MacMiniVault : bash <(curl -Ls http://git.io/eUx7rg)

However, at the time of writing the script is not compatible with OS X El Capitan (10.11)

Install MySQL using Homebrew

An alternative to the aforementioned installation script is installing MySQL using Homebrew. This gist assumes you already have Homebrew installed, if not first read the article "Homebrew and El Capitan"

Make sure Homebrew has the latest formulae, so run brew update first

@marcobiedermann
marcobiedermann / snippets.md
Last active May 25, 2022 19:57
Mac OS Command Line Snippets

Compression

Archive tar and gzip

tar -czf output.tar.gz input_folder1 input_folder2 input_file …

Extract tar and gzip