iambumblehead

The introduction to Reactive Programming you've been missing

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

This is a list of links I have read:

Warning: good quality :)

What is an FRP application.

An FRP application has the following properties

Functional, pure, immutable.
Reactive, your application is a DAG, you react to "core" inputs and from new outputs.

Being an immutable DAG

If your application is an immutable DAG it has certain properties

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

Firefox bullshit removal

Updated: Just use qutebrowser (and disable javascript). The web is done for.

This is the process of setting up erlang, rebar3, and cowboy for a Hello World, starting with a clean Debian 8 install.

Update apt and install deps:

root@046edcaea45a:~# apt-get update
root@046edcaea45a:~# apt-get install erlang erlang-dev gcc
root@046edcaea45a:~# wget https://s3.amazonaws.com/rebar3/rebar3
root@046edcaea45a:~# mkdir ~/bin/
root@046edcaea45a:~# mv rebar3 ~/bin/
root@046edcaea45a:~# chmod +x ~/bin/rebar3

	// REFERENCE UNICODE TABLES:
	// http://www.rikai.com/library/kanjitables/kanji_codes.unicode.shtml
	// http://www.tamasoft.co.jp/en/general-info/unicode.html
	//
	// TEST EDITOR:
	// http://www.gethifi.com/tools/regex
	//
	// UNICODE RANGE : DESCRIPTION
	//
	// 3000-303F : punctuation

	main(argc, argv)
	int argc;
	char *argv[];
	{
	int i;

	argc--;
	for(i=1; i<=argc; i++)
	printf("%s%c", argv[i], i==argc? '\n': ' ');
	}

	// Lack of tail call optimization in JS
	var sum = function(x, y) {
	return y > 0 ? sum(x + 1, y - 1) :
	y < 0 ? sum(x - 1, y + 1) :
	x
	}

	sum(20, 100000) // => RangeError: Maximum call stack size exceeded

	// Using workaround

	function createCORSRequest(method, url) {
	var xhr = new XMLHttpRequest();
	if ("withCredentials" in xhr) {

	// Check if the XMLHttpRequest object has a "withCredentials" property.
	// "withCredentials" only exists on XMLHTTPRequest2 objects.
	xhr.open(method, url, true);

	} else if (typeof XDomainRequest != "undefined") {