I build an Abstract Syntax Tree (AST) and usually something with a fluent interface that builds a query. I find this helps me understand the nuances of interfac

I build an Abstract Syntax Tree (AST) and usually something with a fluent interface that builds a query. I find this helps me understand the nuances of interfaces and inheritance in a given language and I’m generally interested in the problem so I tend to get far enough to really learn something. It also helps to practice breaking a problem into steps as an AST is structured in such a way as to encapsulate distinct behavior within a node. Often this will result in using something akin to the Visitor pattern and this helps you further separate behavior from form. I am a full stack senior dev, work often in Go or Node/JS when building services and React/JS when building front ends.