Guides to the core and standard libraries, as well as selected Rubygems.
Category: APIs and Libraries
Episode #020: Struct
In previous episodes we've used the Struct class in passing to quickly construct classes. This time, we put Struct in the spotlight, and put it through its paces. You'll want …
Episode #015: Advanced #fetch
In this final installment on the #fetch method we look at #fetch beyond Hash; #fetch with nested hashes; re-using default blocks; and more.
Episode #012: #fetch for Defaults
How to use Hash#fetch to provide defaults for missing keys, and why you might prefer that to other techniques for defaulting values.
Episode #008: #fetch as an Assertion
Hash#fetch is one of my favorite methods. In this episode, I take a look at using it to assert the existence of hash keys.
Episode #006: Forwardable
A short introduction to using Ruby's Forwardable library for object composition.