The empty value type. 更多...
The
void
type is exclusively used to type-annotate JavaScript functions returning
undefined
。例如:
function doThings() : void { console.log("hello") }
This is to help tooling analyze calls to such functions and compile them and their callers to C++.
You cannot declare
void
properties in QML.
另请参阅 QML 值类型 .