webengine function does not take 0 arguments

[elicat]

hello,
I have in file .h :

Q_PROPERTY(QJsonArray answerToLife READ answerToLife NOTIFY answerToLifeChanged)
. . . . . 
public:
	QJsonArray answerToLife(QJsonArray array_parameter);

In file .cpp i have:

void EngineIndexHtml::changeAnswerToLife()
{
	emit answerToLifeChanged(array_parameter);
}

When i Build the program i have this error:

answerToLife': function does not take 0 arguments
Where I wrong? 
Thanks for your help

[sierdzio]

A read function should not take any parameters. In other words, your declaration should be:

public:
	QJsonArray answerToLife() const;

// Or at the very least:
	QJsonArray answerToLife(QJsonArray array_parameter = QJsonArray()) const;

That's because meta object's property() method needs to be able to call your property getter, and it has no way of knowing what argument to pass.

[elicat]

@sierdzio thanks