When you treat your collections as enumerators, you get to use all your favorite functions like #map and #reduce without having to write any extra code. In this post I show you how easy it is to create enumerators on the fly, without defining extra classes or messing around with the Enumerable module.
These days it's pretty common to see #freeze used in Ruby code. But it's often not entirely clear WHY freeze is being used. In this post we'll look at the most common reasons a developer might freeze variables.
If you want your app to behave well in a unix environment, it's important that it exit correctly. In this post you'll learn all about unix exit codes, the mechanism that Ruby uses to exit a program, and how you can add custom behavior on exit.
Good news Elixir fans! Honeybadger now supports exception monitoring for Elixir. Let's take a look and see how easy it is to get started.
But buried within Ruby's nesting implementation - and Rails' autoload system - are a few traps that can cause your code to fail in strange and wonderful ways. In this post, we'll discuss the origin of these traps and how you can avoid them.
It's often useful to be able to get the most recent exception, even if your code doesn't control the lifecycle of that exception. In this post we explore a few of the ways to do this.
For over a year now you've been able to route your error notifications to PagerDuty. Now you can send outage notifications as well.
Did you know that Ruby provides a way for your script to use its own source file as a source of data? It's a neat trick that can save you some time when writing one-off scripts and proofs of concept. Let's check it out!
Have you ever had a bunch of data in an array, but needed to do a key/value lookup like you would with a hash? Fortunately, Ruby provides a mechanism for treating arrays as key-value structures. Let's check it out!
The only thing worse than getting paged in the middle of the night is to also wake up your partner. In this post I show you how you can set up a fitness tracker wristband to silently wake you up the next time you get paged.
Files are just large collections of lines or characters. Lazy enumerators make it possible to to some very interesting and powerful things with them.
Just how much slower are exceptions than other flow control mechanisms? In this post we use a simple benchmark to find out.
Ruby 2.1 and later support nested exceptions via the Exception#cause method. Now you can view these for any error reported to Honeybadger. This post gives a brief introduction to exception causes in Ruby, and shows you what they look like in the Honeybadger UI.
It's a common misconception that the raise method only accepts exceptions as its argument. This post will show you how you can raise ANYTHING, including numbers, dates, and your own custom classes.
One of the nice things about working with rails is that when something goes wrong in development, you get a really nice error detail page. Today we're going to take a look at how these fancy error pages work.
It’s easy to find code snippets that will delete the jobs from one Sidekiq queue. But we have *lots* of queues. I want to clear the jobs from all of them. After a little digging, I came up with an answer that seems to work well.
Fiddle is a little-known module that was added to Ruby's standard library in 1.9.x. It allow you to interact directly with C libraries from Ruby. In this post we'll start with some simple examples and finish by using termios to talk to an arduino over a serial port.
Sometimes the standard backtrace / error message combo isn't enough. Sometimes you need extra data to locate the cause of an error. In this post we'll discuss three easy ways to add more context to your exceptions.
If you've ever taken a look at Ruby's exception hierarchy, you may have noticed something weird. In addition to all of the normal exceptions like RuntimeError and NoMethodError, there's an odd reference to Errno::* . This post discusses what these exceptions are and how to interpret them.
Unix daemons are programs that run in the background. Nginx, Postgres and OpenSSH are a few examples. They use a some special tricks to “detatch” their processes, and let them run independently of any terminal. I thought it’d be fun to do a post illustrating how they work in Ruby.