Learn two ways to avoid switching on nil in Rails apps, in this double feature from RubyTapas and Upcase
"Tell, don't ask" is easy to say, but how do you actually put it into practice?
AMA with Avdi, Part 1
Learn how to make deep copies of arbitrary Ruby object trees.
Freezing a Ruby object can leave you skating on thin ice. Learn how to render complex Ruby objects totally immutable.
Your code is a liability.
Learn about a useful tool for generating realistic-but-fake data for examples and tests.
Ask me anything!
Now that you've learned how to obfuscate your code with Perl-style special variables, learn how to make it readable again!
Tools for remote working, choosing a frontend framework, and optimizing validations.
Learn about one final category of Ruby's Perl-style special variables, and some guidelines for using them.