QtScript

QtScript was a scripting engine that was integrated into the Qt framework. It allowed Qt-based applications to be extended with dynamic scripting capabilities using a syntax based on ECMAScript (JavaScript). QtScript provided a means to embed a scripting environment within a Qt application, enabling developers to expose Qt objects and functions to script code, allowing for customization and extension without requiring recompilation of the application.

QtScript was initially introduced in Qt 4.3 and was marked as deprecated in Qt 5.5, with its final removal in Qt 5.7. The primary reason for its deprecation was the availability of more modern and performant alternatives, particularly the use of QML (Qt Modeling Language) coupled with JavaScript for application logic.

While active, QtScript offered features like:

• Dynamic Scripting: Enabled runtime modification and extension of application behavior.
• Integration with Qt Objects: Allowed scripts to interact with Qt's core classes, such as widgets, data structures, and networking components.
• Reflection: Offered runtime introspection of Qt objects, allowing scripts to discover and manipulate properties and methods.
• Garbage Collection: Managed memory automatically, reducing the risk of memory leaks.

Due to its removal from Qt, developers are now encouraged to use alternative technologies like QML, which provides a more modern and efficient approach to embedding scripting logic within Qt applications. QML integrates JavaScript seamlessly and offers a declarative approach to user interface design. Another option is to use a dedicated scripting engine like V8 or SpiderMonkey, integrating it directly into the application.