Since JS got map and ternary operator of condition?true():false(), its easy to make pure functions that return a tree of components. Whereas most Python ui/html languages resort to doing side effects on a global object. Wonder if there will be a PEP for a typesafe templating language.
Seems similar to reflex, just a little more pythonic. The only thing I'm currently missing is a properly working node-graph editor/library implementation or wrapper (e.g reactflow).