Andrei Sebastian Cîmpean andreisebastianc

You're Missing the Point of Promises

Promises are a software abstraction that makes working with asynchronous operations much more pleasant. In the most basic definition, your code will move from continuation-passing style:

getTweetsFor("domenic", function (err, results) {
    // the rest of your code goes here.
});

I'm a fan of MiniTest::Spec. It strikes a nice balance between the simplicity of TestUnit and the readable syntax of RSpec. When I first switched from RSpec to MiniTest::Spec, one thing I was worried I would miss was the ability to add matchers. (A note in terminology: "matchers" in MiniTest::Spec refer to something completely different than "matchers" in RSpec. I won't get into it, but from now on, let's use the proper term: "expectations").

Understanding MiniTest::Expectations

Let's take a look in the code (I'm specifically referring to the gem, not the standard library that's built into Ruby 1.9):

# minitest/spec.rb

module MiniTest::Expectations

	var user = {
	validateCredentials: function (username, password) {
	return (
	(!(username += '') \|\| username === '') ? { error: "No Username Given.", field: 'name' }
	: (!(username += '') \|\| password === '') ? { error: "No Password Given.", field: 'pass' }
	: (username.length < 3) ? { error: "Username is less than 3 Characters.", field: 'name' }
	: (password.length < 4) ? { error: "Password is less than 4 Characters.", field: 'pass' }
	: (!/^([a-z0-9-_]+)$/i.test(username)) ? { error: "Username contains invalid characters.", field: 'name' }
	: false
	);

	source :rubygems

	# We are not loading Active Record, nor Active Resources etc.
	# We can do this in any app by simply replacing the rails gem
	# by the parts we want to use.
	gem "actionpack", "~> 3.2"
	gem "railties", "~> 3.2"
	gem "tzinfo"

	# Let's use thin

	Drop in replace functions for setTimeout() & setInterval() that
	make use of requestAnimationFrame() for performance where available
	http://www.joelambert.co.uk

	Copyright 2011, Joe Lambert.
	Free to use under the MIT license.
	http://www.opensource.org/licenses/mit-license.php

	/*
	* From css-tricks.com
	* http://css-tricks.com/snippets/css/media-queries-for-standard-devices/
	*/

	/* Smartphones (portrait and landscape) ----------- */
	@media only screen
	and (min-device-width : 320px)
	and (max-device-width : 480px) {
	/* Styles */

	html { height: 100% }
	body { height: 100%; margin: 0; padding: 0 }
	#harita_canvas { height: 100% }