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 #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 …
Episode #646
Zip
What does Ruby have to do with a classic fabric fastener? Read or watch to find out!
Episode #645
Grep, Sort, Uniq
As we continue exploring Ruby one-liner alternatives to UNIX command-line operations, today we tackle a common case: a combination of grepping through multiple files, and collating the results.
Episode #644
Console Width
Have you ever wondered how to tailor Ruby console output to the specific size of the user's terminal? In this video you'll learn how, using the io/console standard library!