In this lightning talk, we will discuss 2 interesting IntelliJ IDEA features.

IntelliJ IDEA allows for displaying useful information directly in the editor, next to the code, in the form of inlay hints, that is, text that is slightly different from the actual code, but similar enough to be effortlessly read together with it. But such functionality comes at a price – you may feel that the editor is now too crowded and cluttered with unnecessary text. The X-Ray mode is a way to solve it. With X-Ray, you can keep inlay hints and all the other additional information disabled or only partially enabled to the point where you feel comfortable. In this lightning talk, we will discuss both these features.
In this talk we'll see how to model a tree structure in Scala, take both imperative and functional approaches to tree traversal algorithms, and do some ASCII art at the same time.
In this talk, I'd like to share how the Iron library and features from Scala 3 helped us build a solution which is safer, more robust, and easier to maintain.