Qt Is Likely To Use The V8 JavaScript Engine

It looks like with Qt 5.0, V8 will become the JavaScript Engine for the Qt tool-kit as well as for Qt Script and Qt Quick.

Currently Qt uses JavaScriptCore as its engine, but Qt developers are looking to have a common JavaScript engine for Qt WebKit, Qt Script and QML. This would allow mixing QML and WebKit in the same application using a single JavaScript environment, use HTML5 web application APIs in QML, use the Qt Script API to extend WebKit's JavaScript support, and less memory usage due to a single, shared JavaScript engine.

It looks like Qt developers are settling to use V8, the JavaScript Engine developed by Google for their Chrome/Chromium web-browser. It was back in February when I mentioned Nokia was looking to use Google V8 as its JavaScript Engine.

There is this bug report to track the Qt JavaScript Engine. There is already a proof-of-concept Qt with V8. Benchmark results have also showed to be very promising.

Qt 5.0 is scheduled to be released next year. Besides a new JavaScript Engine, it will have better support for the Wayland Display Server and other fundamental changes.

Prost to Mark for pointing out this new Qt JavaScript information.