Almost every developer knows the phrase “premature optimization is the root of all evil”, coined by Donald Knuth in 1974. But how are we supposed to know what is worthy of being optimized?

Exception handling is a mechanism used to handle disruptive, abnormal conditions to the control flow of our programs. The concept can be traced back to the origins of Lisp and is used in many different programming languages today.

Almost no software project lives isolated without dependencies. There are many different approaches to choosing them. The spectrum goes from “just use the stdlib” like its preferred in Go, up to “use dependencies for every single line of code” like JavaScript.

The way we manage iOS dependencies has evolved a lot over time. And the latest and most integrated offering is the Swift Package Manager (SPM). But what to do if your favorite dependency is not SPM-compatible (yet)? We do it ourselves!

We all know that code lines shouldn’t be too long, and many of us use the default value of 80 columns as a (flexible) limit. But do you know why it is precisely 80, and not 60 or 120?