Understand how asynchronous JavaScript works: Read Henning's presentation about asynchronous Javascript (there's also a German video presentation...
Just like we use gems on the server, we use third party JavaScript libraries in the browser. These typically provide...
In a web application you often need to move data between the client (HTML, Javascript) and the server (Ruby, Rails...
Rubymonk training Read the following Rubymonk articles: Ruby Primer: Ascent (archived copy) Metaprogramming Ruby (archived copy) Metaprogramming Ruby: Ascent (archived...
Method lookup Understand all the terms in How Ruby method lookup works, in particular: include extend singleton class
Your MovieDB gained traction and is now a popular tool among cineasts. This comes with a downside: You noticed a...
Exercise 1: XML On the start page of your Movie DB, show the title of a random movie that is...
Jasmine is a great tool to unit test your JavaScript components without writing an expensive end-to-end test for...
Many of our clients can't or don't want to design their user interfaces. In the absence of a...
Adopting legacy Rails apps Talk to your mentor about how we're approaching applications that are either old or abandoned...
Goal of this lesson is to understand what middlewares in Rack are good for. Rack Start with these articles:
Some tasks in a web application are better not done live when a user request a page, but in the...
Resources Rails Guide: Internationalization API Guide to localizing a Rails application Locale-aware helpers in ActionView::Helpers::NumberHelper
Action Mailer Basics and Previews Chapter "Task H1: Sending Mail" from Agile Web Development with Rails 7.2 (in our...
Web technology is a broad field and you cannot be an expert in all aspects. However, it is useful to...
What is rake good for? Take a look at some of the Rake tasks that Rails gives you (rake...
For each movie in MovieDB, we want to track which other movie it was inspired by. For...
Rails ships with two separate build pipelines: Sprockets ("asset pipeline") and Webpacker. Webpacker has many more moving parts, but allows...
Best results in other decks
You can check the maximum client Redis database size in Sidekiq with this command. Sidekiq.redis { |redis| puts redis.info.fetch('maxmemory_human...
Why Rails has multiple schema formats When you run migrations, Rails will write your current database schema into db/schema.rb. This...