Ruby Block-Local Variable
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Is it defined?
Constants, globals, locals, instance variables, methods... Ruby has a lot of namespaces. Let's learn about a Ruby power tool for reflecting on these n…
Numbered Parameters
In a language full of expressive little shorthands, it's time to meet a new idiom! This one makes simple blocks even more concise.
Bindings and Local Variables
Learn how to use the power of Ruby's Binding objects to take precise control of the environment code is executed within!
Mixed Argument Struct
Ruby is all about giving coders choices. What if you could give users of your code the choice between positional or keyword arguments, or some mix of …
Parameter Destructuring
Learn about Ruby's method introspection features while re-creating JavaScript's parameter destructuring. Join guest chef Brandon Weaver for this mind-…
Special Variables Part 4: Speak English!
Now that you've learned how to obfuscate your code with Perl-style special variables, learn how to make it readable again!
Special Variables Part 3: Regex Matching
Learn about one final category of Ruby's Perl-style special variables, and some guidelines for using them.
Special Variables Part 2: I/O
Learn about Ruby's Perl-style I/O special variables, and why they exist.
Extract Default to Method
Some pointers on making your Ruby parameter defaults self-documenting.