dereknguyen269

The introduction to Reactive Programming you've been missing

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.

workflow:

$ rails g model NameOfModel
    invoke  active_record
    create    db/migrate/YYYYMMDDHHMMSS_create_name_of_models.rb

People

Create droplet of your liking (ubuntu 12.10 x32)

ssh to root in terminal with your server ip

ssh [email protected]

Add ssh fingerprint and enter password provided in email

	# This is just a cheat sheet:

	# On production
	sudo -u postgres pg_dump database \| gzip -9 > database.sql.gz

	# On local
	scp -C production:~/database.sql.gz
	dropdb database && createdb database
	gunzip < database.sql.gz \| psql database

	How to Completely Remove Android Studio


	Execute these commands from the terminal

	rm -Rf /Applications/Android\ Studio.app
	rm -Rf ~/Library/Preferences/AndroidStudio*
	rm ~/Library/Preferences/com.google.android.studio.plist
	rm -Rf ~/Library/Application\ Support/AndroidStudio*
	rm -Rf ~/Library/Logs/AndroidStudio*

	HTTP status code symbols for Rails

	Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings.

	Status Code Symbol
	1xx Informational
	100 :continue
	101 :switching_protocols
	102 :processing

	- Check rails version
	$ rails -v

	- To update rails
	$ gem update rails

	- Creating a new rails app using postgresql
	$ mkdir rails_projects
	$ cd rails_projects
	$ rails new myapp --database=postgresql

	function titleize(sentence) {
	if(!sentence.split) return sentence;
	var _titleizeWord = function(string) {
	return string.charAt(0).toUpperCase() + string.slice(1).toLowerCase();
	},
	result = [];
	sentence.split(" ").forEach(function(w) {
	result.push(_titleizeWord(w));
	});
	return result.join(" ");