Typographic Conventions

Typographic norms

To follow along in this course, we’ll need to know a few things about how it’s written as well as to have a working development environment. This course contains both code listings as well as instructions for running commands in a shell.

Code listing

Code listings will usually be preceded by the file name and either show the entire file or provide enough context to know where in the file we are referring to. Changes will be highlighted with arrows. Lines to remove, if not obvious from context, are called out with an x. For example, the following code listing shows a single method of a Rails controller where we have changed two lines and removed three: