Comment by jdkoeck
Alas, that’s a common misconception! You’re confusing properties with attributes. Attributes are set through HTML and are stringly typed, but litjs properties can be any js value.
For instance, I have a project with a small web component that displays data from a duckdb wasm connection. The connection object is passed as a property and it works flawlessly.
If you’re using it with something like React, passing attributes is easy, but setting properties is much harder, requiring using the escape hatches—I believe you’ll need useRef and useEffect, and a bit of care because it’s frightfully easy to do the wrong thing.