QWebEngineView. How to pass variable to Js function?

[Ucn_]

Hello. I would to know how I can pass a QString variable to js function. Example:

QString value;
webview = new QWebEngineView;
webview->page()->runJavaScript("getInfo(value);");

I receive this error:

js: Uncaught ReferenceError: value is not defined
[17240:14380:1213/204829.811:INFO:CONSOLE(1)] "Uncaught ReferenceError: value is not defined", source: qrc:/new/web/Posts.html (1)

It only accepts if value is quoted, "value".
Thanks

[JonB]

@Ucn_

webview->page()->runJavaScript("getInfo('" + value1 + "', '" + value2  + "');");

[JonB]

@Ucn_
To pass the value of value into your JavaScript, as shown, you'll want something like

webview->page()->runJavaScript("getInfo('" + value + "');");

Note how it is being quoted inside ' and '.

There will be some alternative QString way of making the string I do with + above, if you prefer.

[Ucn_]

@JonB Thanks, can that method pass two parameters?

[JonB]

@Ucn_

webview->page()->runJavaScript("getInfo('" + value1 + "', '" + value2  + "');");

[Ucn_]

@JonB Thanks.

[JonB]

@Ucn_
OK, I believe this is how you do it in nice, readable fashion:

webview->page()->runJavaScript(QString("getInfo('%1', '%2');").arg(value1).arg(value2));

Looks neater, doesn't it? :)

To do it properly/robustly, if your values could ever contain a ' character you would have to process your value via a function to protect embedded 's. Also if it has any \s.