Language features, syntax, and gotchas.
Sooner or later you'll want to subclass Array. This episode looks at why that's a bad idea, and presents an alternative.
How to find out if there is a super method to be called, and other tricks for using super within a module.
A dive into some of the dark corners of the `super` keyword.
Sometimes one instance is all you need.
Some alternative ways to write symbols in Ruby code.
A look into how Ruby's object construction works, and how we can customize constructors for special scenarios.
Using strings to build up command lines for execution is error-prone and potentially insecure. Check out why Ruby's %W array-literal syntax is the perfect tool for writing, composing, and executing …
Much like a vestigial tail, Ruby has a character literal syntax which is funny-looking and largely useless. In the interests of completeness, let's see if we can find an excuse …
Formatting big numbers readably.