The Docker project is revolutionizing the way many teams deliver software, by making it possible to package up virtual machines into lightweight, portable containers. But even if your project isn’t […]
Episode #632
Loops!
In this rare beginner-oriented episode, we're going to talk about looping constructs in Ruby, starting from the most basic infinite loops, and building up to for/in loops.
Episode #631
Testing with Coat Hangers
What happens when you try to TDD new functionality deep inside a private method? The resulting tests can feel terribly awkward and brittle.
Episode #630
Where do Private Methods Come From?
A question that I hear a lot is: "Do you test private methods? And if so, how?" In this, the first of a series, we'll talk about where private methods …
Episode #629
Nested Class
Want to cut down on the mental friction of good object design? Use this organic approach to sprouting new classes in Ruby!
Episode #628
Process Substitution
In this Bash-focused episode, we'll explore a nifty trick for reading from subcommands as if they were files!
Episode #627
Rake Global Tasks
Rake isn't just for running tests. You can use Rake to organize all your favorite development automation tasks across ALL your projects. Find out how, in this episode!
Episode #626
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.
Episode #625
Docker Diff
"What did that program change?!!" - In today's episode you'll see how you can definitively answer this question, using a built-in feature of Docker!
Episode #624
ltrace
As we've explored recently, strace is a powerful tool for understanding how a program interacts with the operating system. But it's only for system calls. Learn how to use ltrace …