Alex Kale awkale

Open terminal and check versions of Ruby and Rails against production server params or to make sure you are using the most recent stable versions.

  $ ruby -v
  $ rvm list
  $ rvm list known
  $ rvm install ruby 2.2.1
  $ rvm list
  $ ruby -v
  $ gem install rails
 $ rails -v

start

pg_ctl -D /usr/local/var/postgres start

pg_ctl -D /usr/local/var/postgres stop

brew services start postgresql


	// Single-line comments start with two slashes.
	/* Multiline comments start with slash-star,
	and end with star-slash */

	// Statements can be terminated by ;
	doStuff();

	// ... but they don't have to be, as semicolons are automatically inserted
	// wherever there's a newline, except in certain cases.


	# This is a comment

	=begin
	This is a multiline comment
	No-one uses them
	You shouldn't either
	=end

	# First and foremost: Everything is an object.


	# Les commentaires sont précédés d'un signe "#", comme cette ligne.

	#############
	# SCALAIRES #
	#############

	# Les scalaires sont l'ensemble des types YAML qui ne sont pas des collections
	# (listes ou tableaux associatifs).

	# Migration generator shortcuts.
	# rails generate migration MyNewMigration
	# rails generate migration add_fieldname_to_tablename fieldname:string
	# rails generate model Product name:string description:text
	# The set of available column types [:string, :text, :integer, :float, :decimal, :datetime, :timestamp, :time, :date, :binary, :boolean]


	# A migration is a subclass of ActiveRecord::Migration. You must implement the "up" and "down" (revert) methods.

	# These are the handy methods available to a Migration:

	(function() { // protect namespace, Immediately-Invoked Function Expression (IIFE)

	function Person( firstName, lastName) {
	this.firstName = firstName;
	this.lastName = lastName;
	}
	Person.prototype.greet = function() { // prototypes allows object to inherit function properties
	return "hello my name is " + this.firstName;
	}

	git config --global core.editor "atom --wait"
	git config --global core.editor "subl -n -w"

	lsof -i :3000
	kill -9 {PID #}