The Observer pattern (also known as publish/subscribe) provides a simple mechanism for one object to inform a set of interested third-party objects when its state changes.
GitLab is a great version control software which has options to either self host or or use their hosted solution. In this episode, we look at using the GitLab Runner to run our Continuous Integration and Continuous Deployment.
Let's face it, Ruby is slow , but don't abandon Ruby just yet. Using extensions, we can write performant code in another language for the specific slow functions while the rest of the application remains untouched.
The Mechanize library is used for automating interaction with websites. Mechanize automatically stores and sends cookies, follows redirects, and can follow links and submit forms. Form fields can be populated and submitted.
In this episode, we look at creating ruby objects. Then we look at different ways of implementing memoization and how it can be used to speed up our classes.