As @ahartmetz said:

> QML is absolutely not JavaScript. It's a markup language to describe user interfaces, spiced with JS for certain interactions. All heavy lifting behind the scenes is done in C++ - the QML runtime as well as the application logic and data models.

How's QML useless? It's incredible language for UI. I described how I developed my Block Editor (like Notion) in Qt QML and C++: https://rubymamistvalove.com/block-editor

[dead]