How to get result from javascript code run by runJavaScript in QtWebengine?

yetanotherqtfan

How can I get the result from javascript run by runJavaScript in QtWebengine?

I want to get result from the js run by runJavaScript. The result is formed after some time in js, but since js returns immediately, I can not get the mature result. How can I modify the js code or the C++ code to get the mature result? I know I can use QWebChannel to notify C++ of the mature result at appropriate time but that is a little complex. Can I delay the return time of js code so it can return with the matured result?

C++:

page()->runJavaScript(js,[this](const QVariant &v) {
        qDebug()<<v.toString();
}

js:

var result="immature result";
function fun()
{
    result="mature result";
}
setTimeout(fun,2000);
result;

jsulm

@yetanotherqtfan https://doc.qt.io/qt-5/qwebenginepage.html#runJavaScript-2

Hetal

In your runJavascript function either you emit a signal or you can call a function of the save class and then pass the value in that function.

page()->runJavaScript(js,[this](const QVariant &v) {
newFunction(v);
}

Then in newFunction you can carry out the further code.