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Saved for my personal reference, all content belongs to codetheory.in

Controlling the Frame Rate with requestAnimationFrame

Limiting the frame rate while using requestAnimationFrame can be a common want especially when coding Games where you want your animations and mechanics to not exceed a particular mark of frames per second. Let’s go through 2 ways of doing it.

Quick and Easy Way

Using setTimeout inside the rAF method is an easy way.

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var ytPage  = process.argv.length === 3 ? process.argv[2] : null,
	idPatt  = /^.*(?:(?:youtu.be\/)|(?:v\/)|(?:\/u\/\w\/)|(?:embed\/)|(?:watch\?))\??v?=?([^#\&\?]*).*/i,
	idMatch = ytPage ? ytPage.match(idPatt) : null,
	id      = idMatch && idMatch.length === 2 && idMatch[1] && idMatch[1].length === 11
		? idMatch[1] : null,
	fmt     = [ 18, 22, 35, 6, 5 ],
	ytdl;

if (!id) exitError();

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Problem:

Running a .desktop file from anything else than a launcher or a filemanager doesn't work, even if called via xdg-open (bug)

Solution:

Create a python file and call it, passing any .desktop file path.

#!/usr/bin/python

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Setup fake HTTPS SSL certificate on Linux

• Good links to open and read first.
• Install curl openssl libnss3-tools
• Open terminal (Become root first ! su -l)

mkdir /etc/ssl/self-signed && cd /etc/ssl/self-signed
openssl genrsa -des3 -out server.key 1024
openssl rsa -in server.key -out server.key.insecure

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#!/usr/bin/python3
"""
Generate cheatsheet of possible combinations of numbers in killer sudoku cells
"""
from itertools import chain, combinations
import sys

def powerset(iterable):
    """https://stackoverflow.com/questions/464864/"""
    s = list(iterable)  # allows duplicate elements

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#!/usr/bin/env bash

# $ ./make_m3u_youtube_playlist.sh [-d OUTPUT-DIR] URL [URL ...]

if ! which jq &>/dev/null || ! which youtube-dl &>/dev/null; then
	echo "'youtube-dl' and 'jq' must be installed in \$PATH, exiting." 1>&2
	exit 1
fi

declare log_file="$HOME/.make_m3u_youtube_playlist.log"

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#!/usr/bin/env bash
set +H

# Using STDIN, check LINES of FILES and use the test command to filter by EXPRESSION
# Supports all EXPRESSIONS that test does.
# fn | test_stdin -f \! -d -L -s \! -ot FILEARG
# Use '!' to negate results. -ef, -ot, -nt will be read as "LINE -nt FILEARG"

if [[ $# -eq 0 ]] ; then
	# An omitted EXPRESSION defaults to false (see manpage for test)

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#!/bin/bash

# Mixing in python with bash we can easily retrieve our passwords securely in our shell scripts.
# Read this first: https://live.gnome.org/GnomeKeyring/SecurityPhilosophy
# Make sure your distro has gnome-keyring-daemon installed and running at login,
# as well as python-keyring installed (sudo apt-get install python-keyring)
##
# Follow these steps to see what it does. Verify by looking in Seahorse for your password.
##

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#!/usr/bin/env bash

get_ms () {
	date +'%s%N' | grep -oP '^[0-9]{13}'
}

show_usage () {
	# *******************************************************************
	read -d '' help_text <<- EOF
vsleep - verbose sleep

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#!/usr/bin/env bash

set -e

repeat_char () {
	printf '%0*d' "$2" 0 | sed 's/0/'"$1"'/g'
	return 0
}

if ! command -v lolcat; then