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 #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!
Episode #643
Rake Introspection
You tell a build tool where you want to go, and it figures out the shortest path to get there. But when things go wrong, understanding why can be challenging. …
Episode #642
Line Ending Processing Mode
Want line terminators in input text to just Go Away? Ruby has a mode for that!
Episode #641
Unroll Test Loops
Be wary of the temptation to DRY up testing code. As you'll see in this episode, a refactoring that might add value to to application code can actually make your …
Episode #640
Autosplit
Ruby has tools like -n and -p for filtering and summarizing text right from the command-line. But what about columnar input, like process listings or CSV? Today we'll see how …
Episode #639
Interpolation over Concatenation
Why do Ruby programmers use so much String interpolation where other devs might prefer concatenation? Join Jessitron and Avdi for a dialog on language design, idiom, and history!