Continuing in our quest to containerize development, in this video we begin customizing our app container in order to capture an essential tool dependency.
Category: Premium Episodes
Episode #656
Understanding `npm run` (and why to avoid `npx`!)
In today's episode, guest chef Jessica Kerr returns to dig deeper into NPM, and delivers some strong opinions about the npx command!
Episode #654
A Quick Dev Container
Using containers for development doesn't have to involve writing a bunch of configuration. In today's episode we'll go from zero to running Rails tests inside a deccontainer, with nary a …
Episode #652
Null-Terminated Record
Before YAML, before JSON, there were null-terminated records. See how this simple, pragmatic technique greases the pipes between UNIX command-line tools---and how you can harness it in your Ruby one-liners!
Episode #651
Chomp
Ruby can be your multitool for all kinds of text-munging tasks. But to use it effectively, you need to understand how Ruby handles line endings and record separators.
Episode #650
Re-Run Just the Tests That Failed
A test-driven development workflow is only effective when it gives you quick, meaningful feedback. Check out these power-user facilities for RSpec and MiniTest that will help you skip the noise …
Episode #649
Input Record Separator
Ruby has a lot of tools for processing input line-by-line. But when you look a little closer, it turns out that these methods are for more than just lines of …
Episode #648
Output Record Separator
Did you know Ruby has a print method in addition to puts? Did you know it's for record-oriented output? Do you know how to control the formatting of records in …
Episode #647
Lazy Zip
Shiny protons! Infinite streams! Producer blocks! Lazy enumerators! In this video about using a functional style to work with potentially infinite collections, we'll get into some weird and wonderful corners …