Avdi Grimm, Code Cleric
In Ruby class-based programming, superclass versions of subclass methods are always invoked explicitly using the super keyword. There are some nuances to using super though, particularly when it comes to passing (or not passing) arguments and blocks along to the base class. In this sample from from the RubyTapas archives, we’ll talk about some of those “gotchas”.
Here’s another freebie from the deep RubyTapas stacks. This one is about a truth of object modeling that we don’t often talk about: not every object needs to have state. If an object has no state, there’s no need to have more than one of it. And for stateless objects, having a class just to generate a single instance may be superfluous!
Here’s another classic from the early days of RubyTapas. Originally published as Episode #11 in October 2012, it’s a complement to the episode on using fetch as an assertion. This episode digs into the difference between using the || operator for defaults vs. using Hash#fetch.
Hello friends,
It smells like autumn. This will likely be an autumn without apple-cidering and hayrides, which makes me sad.
I'll Trade Ya!
Hey there! Archived SIGAVDI letters are for newsletter subscribers only. All it costs to join (and unlock this post) is an email address! I'll write to you weekly-ish with a few interesting links, some updates, and some reflections on the intersection of software and life. And I'll respond to your replies! Whattya say?
I’m still on a dead-tree kick, so more book quotes this week…
I have written before about the hidden dangers of unstructured or “flat” organizations. A microcosm of the structure wars is the debate over whether Open Source software projects should adopt explicit codes of conduct. These codes, if not an introduction of true structure, are at least the imposition of a “social API” of sorts.
Periodically I take episodes from the RubyTapas archives and publish them for free. This episode from October 2012 is about symbol literals, and how you can use alternative quoting syntax to embed and interpolate any kind of character sequence in a symbol. And also: why you might not want to take advantage of this. Enjoy!
Hello friends,
First off, real quick: I’m planning a workshop on project automation. Tell me if you’re interested? Thanks!
OK, onward…
I’ve been reading a lot of books lately. So in lieu of the usual links, I give you a throwback to earlier incarnations of SIGAVDI: Fewer links, more quotes.
Hello friends,
Long time no write. I spent the summer at home with my kids. Quarantining in the woods with four small children turned out not be very conducive to writing. Or to doing most of my usual work, for that matter. I focused on keeping RubyTapas ticking along, and otherwise investing in family time, home improvements, and watching democracy fall apart.
In this public Rubber Duck Session, my pairing partner Karim wanted to move some logic for editing message-display rules from the frontend to the backend. We settled on using JSONB and Rails polymorphic attributes as our implementation strategy.
Last week I ran an experimental workshop on Investigative Debugging. It was a lot of fun and the attendees seemed to get a lot out of it. Afterwards I sent out some extra reference material, including this Linux-oriented list of investigative debugging tools!