How to convert QVariant to QJsonValue?

Question

How to convert QVariant to QJsonValue? I know QVariant provide the toJsonValue function, but it did not perform as expected.

For example:

qDebug()<<QVariant(1.0).toJsonValue();
qDebug()<<QVariant("test").toJsonValue();

Both return:

QJsonValue(null)
QJsonValue(null)

Expect output:

QJsonValue(double, 1)
QJsonValue(string, "test")

Answer 1

You can use this static function too:

QJsonValue::fromVariant( myVariant )

Check this link for more info.