Learn the Ruby language by example. We'll look at how Ruby is designed, how it works, and the features you can use to build applications.
3 hours and 23 minutes
Concept Application: Assert Difference Deep Dive
In this video, we will explore how the concepts we looked at in "Flattening Scopes in Ruby" are used in Rails by taking a look at the assert_difference method. We will walk through how the method works while taking note of where the concepts are applied.