Jeff Kreeftmeijer
Vim’s substitution command is a powerful way to make changes to text files.
By using the date utility from a substitution, Vim can convert
all dates in a file to a different format and replace them all at once.
If your open source project gains popularity, it will stay included in other
people's projects and workflows for years. It's impossible to predict if you'll
have time to maintain your work in the future, but there are ways to minimize
the amount of maintenance your project requires to remain useful.
While reading Fred Hébert’s PropEr testing, on property-based testing in Erlang, I set out write PropEr tests in Elixir, and run them with a Mix task.
, on ⚗️ Elixir Alchemy
In the first edition of Elixir Alchemy, we’ll learn how processes work in Elixir by deconstructing the Task module. Along the way, we’ll learn what processes are, how they communicate, and how crashes are handled.
, on 🎩 Ruby Magic
This time, we’ll take our home made server a bit further. When we’re done, we’ll have a web server that can serve Rails’ famous fifteen minute blog that allows you to create, update and delete posts.
, on 🎩 Ruby Magic
In this Ruby Magic episode we’ll learn how a to build a simple Ruby HTTP server in 30 lines of code. When we’re done, our server will handle HTTP GET requests and we’ll use it to serve a simple Rack app.
Using this alias, $ git git status will now automatically convert to $ git status.
ActiveRecord::Base#destroyed? was introduced in 2009, about a year before Rails 3.0 was released. Still, almost five years later, I regularly see code that tests a destroy action by querying the database after deleting the record to see if it still exists.