Language features, syntax, and gotchas.
Category: Language
Episode #028: Macros and Modules, Part 2
In episode 27, we switched from adding generated methods directly to a class, to using anonymous modules. In this episode, we consolidate our metaprogramming modules, and make them more self-documenting.
Episode #027: Macros and Modules
In this episode, we look at how to use dynamically generated modules to make metaprogrammed methods open for future extension.
Episode #022: Inline Rescue
Putting a rescue at the end of a line can get you into unexpected trouble. In this episode we'll look at why, as well as at the one case where …
Episode #018: Subclassing Array
Sooner or later you'll want to subclass Array. This episode looks at why that's a bad idea, and presents an alternative.
Episode #016: super in Modules
How to find out if there is a super method to be called, and other tricks for using super within a module.
Episode #014: super
A dive into some of the dark corners of the super keyword.
Episode #013: Singleton Objects
Sometimes one instance is all you need.
Episode #009: Symbol Literals
Some alternative ways to write symbols in Ruby code.
Episode #007: Constructors
A look into how Ruby's object construction works, and how we can customize constructors for special scenarios.