Talk with a colleague and find out why we're using building some of our sites using static site...
We are using the BEM pattern ("Block, Element, Modifier") to structure our CSS in all new projects. We try to...
Read the following material: World's shortest UI/UX design course Easiest Way to Pick UI Colors
DevDocs combines multiple API documentations in a fast, organized, and searchable interface. Here's what you should know before you...
For each movie in MovieDB, we want to track which other movie it was inspired by. For...
It smells. Rethink your code design. Code example with makandra/has_defaults: class Post < ActiveRecord::Base has_defaults tags: [] # field in db...
We use Selenium WebDriver integrated with Cucumber/Capybara for full-stack integration testing. Try and use it Your forked MovieDB should...
Built-in matchers Get an overview of all the matchers that are built into RSpec. Play with some of...
Ruby has Enumerable.find(&block), which returns the first item in the collection for which the block evaluates to true.
To update your Rubygems to the latest available version, type the following: gem update --system Note that you have a...
Interesting talk about a team that integrated automated security testing into their BDD workflow. There is also a video of...
Spreewald comes with a selector_for helper that matches an English term like the user's profile into a CSS...
I am happy to announce that this information is now available in JSON form at https://ip-ranges.amazonaws.com/ip-ranges.json. The information...
On Ruby 1.9+, standard ruby character classes like \w, \d will only match 7-Bit ASCII characters: "foo" =~ /\w+/ # matches...
What is rake good for? Take a look at some of the Rake tasks that Rails gives you (rake...
How do HTTP requests and responses look like? What are HTTP headers? What are they used for?
If you need a postgresql extension for your database it isn't a good idea to give your applications database...
Read the Rails Guide about Active Record migrations Understand why we never use models in migrations. Checkout the repository...
Learn to store attachments in a way that is accessible by authorized users only Learn to prevent users from...
Understand how asynchronous JavaScript works: Read Henning's presentation about asynchronous Javascript (there's also a German video presentation...
In a web application you often need to move data between the client (HTML, Javascript) and the server (Ruby, Rails...
Exercise 1: Maps In MovieDB, add a new field “Principal filming location”. In a movie’s show view, geocode that...
You can include files from app/assets or from the public folder with javascript_include_tag. The subtle difference that tells...
As you most likely know validates_uniqness_of :foreign_id does not allow nil values by default.