QML
QML (Qt Modeling Language) is a declarative, JavaScript-based language used for designing user interfaces in Qt applications. It allows developers to create fluid, animated UIs with a focus on visual components and their properties, often integrated with C++ for backend logic. QML is part of the Qt framework and is commonly used for cross-platform desktop, embedded, and mobile applications.
Developers should learn QML when building modern, visually rich user interfaces for Qt-based applications, especially in scenarios requiring rapid UI prototyping, animations, or touch-friendly designs. It is particularly useful for embedded systems, automotive dashboards, and mobile apps where Qt's cross-platform capabilities are leveraged, as it separates UI design from business logic for cleaner code maintenance.