Structural Bindings with Qt Containers with Commentary - Video

This is Giuseppe's commentary edition. It's advised you watch Jesper's version first, which can be found here:
https://www.youtube.com/watch?v=f7dlD10bhiI

Iterating over the values of a QMap or QHash traditionally happened by iterating over the key and then looking up the value using that key. Besides that this requires an additional lookup, it is also a bit clumsy.

A much more elegant solution to the problem is structured bindings - a feature introduced in C++17. To use this out of the box, you need Qt 6.4 but this episode shows how you relatively easily can enable it for older Qt versions too.

Links:
* https://www.kdab.com/qt-range-based-for-loops-and-structured-bindings
* https://en.cppreference.com/w/cpp/language/structured_binding

The example code showcased in this video is available here: https://github.com/KDAB/kdabtv/tree/master/Qt-Widgets-and-more/ranges

All QML tips and tricks videos : https://www.youtube.com/playlist?list=PL6CJYn40gN6jWHP5krsQrVGyYtKh3A3be

All Qt Widgets and more videos:
https://www.youtube.com/playlist?list=PL6CJYn40gN6gf-G-o6syFwGrtq3kItEqI