The Honeybadger Developer Blog

Tutorials, product info, and good advice from the Honeybadger crew.

How does ARGV get set in Ruby?

You probably know that Ruby sticks any command-line arguments into a global array called ARGV. But why the heck is it called ARGV? It's an interesting history lesson that highlights Ruby's origins in C.

Announcing OpsGenie Integration

We are super excited to announce that Honeybadger and OpsGenie now work together. Now you can route Honeybadger alerts through to the developer on-call!

Working with Fractions and Rationals in Ruby

Most people are able to think about fractions a lot more easily than they can think about arbitrary decimal numbers -- when was the last time you measured out 0.65739 cups of flour? This post will discuss how to use ruby to work with fractions, and how you can convert gnarly floating point numbers, to nice fractional approximations.

Level Up Your Command-Line-Fu With Ruby

To really master the command line you have to master dozens - if not hundreds - of small utility programs. Fortunately, it's possible to replace a lot of these single-purpose tools with a general-purpose programming language like Ruby. This post will show you how you can use your Ruby skills to level up your command-line game.

Watch Ruby as it parses your code

In this post we'll use a little-known command line flag to spy on Ruby as it parses our code.

Spying on running Ruby processes

Did you know that it's possible to log all method calls as they occur in a running process in real time? How about injecting code to be executed inside of a running process? You can – via the magic of the rbtrace gem.

Lexical scoping and Ruby class variables

In this post we'll discuss some non-obvious behavior of class variables and show how it's all the fault of lexical scoping.

Slicing and Dicing Ruby Enumerables

Have you ever needed to group items in an array, or lines in a file? In this post we'll discuss a few often-overlooked Enumerable methods that let you do just that.

Using splats to build up and tear apart arrays in Ruby

The humble splat operator (*) is one of those features of Ruby that just gets more interesting the more you look at it. In this post we'll talk about how you can construct and manipulate arrays with splats.

How Ruby Interprets and Runs Your Programs

In this post we'll follow the journey of a simple program as it's lexed, parsed and compiled into bytecode. We'll use the tools that Ruby gives us to spy on the interpreter every step of the way.
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