One peculiarity of Ruby that trips up a lot of programmers migrating from other languages is the fact that while it has true and false types, they don't share a […]
Communicative Assertion
Tests can be communicative from multiple angles. How well does your assertion state intent when we read the code? On failure, does your message point us in the right direction?
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 the two? Let's …
Keyword Argument Struct
The quickness and convenience of Ruby Struct with the expressiveness of keyword arguments? Learn how to make the most of this relatively recent Ruby addition.
Clarify Test Comparison
A test is only helpful if you can understand its failures. In today's episode, I'll show you one of my favorite techniques for making test output readable and intent-revealing.
Don’t Use Greater-Than
You know there are some programming language features you're just not supposed to use: goto. Global variables. The greater-than operator. Wait, the greater-than operator?! Find out why, in this guest …
Presenter Object
Guest chef Federico Iachetti returns to demonstrate how Presenter Objects can neatly encapsulate the gray areas between data and display, as well as help customize display for different contexts and …
From Hash to Value Object
Join guest chef Tom Dalling to see how Value Objects can function as contracts, documenting expectations at the integration points of our code. Along the way, learn how to use …
Async with the Reactor Pattern
Ever wondered how async frameworks such as Ruby's EventMachine or Node.JS work under the hood? Those frameworks are built on a technology known as the Reactor Pattern, and today we're …
Why GraphQL?
Join guest chef Nat Budin to see how a traditional RESTful API can lead to an inefficient client/server conversation. You'll see what a GraphQL alternative looks like, and then get …
Async with Multiplexing
In our quest to coordinate asynchronous tasks, we've attempted a polling approach. Unfortunately, this strategy has some significant efficiency drawbacks. This time, we'll apply a technique known as "multiplexing", to …