console functions

[SPlatten]

I've seen that console.log doesn't work in a JavaScript session in Qt. console.info does work, is there something like console.dir ?

console.dir is useful because when used with objects it will expand and display the objects and sub objects with members and values.

[ODБOï]

hi
@SPlatten said in console functions:

I've seen that console.log doesn't work in a JavaScript session in Qt

what do you mean by "JavaScript session" ?

https://doc.qt.io/qt-5/qtquick-debugging.html

[SPlatten]

I've got my C++ Qt Application signals connected to slots in JavaScript.

[ODБOï]

@SPlatten sorry i have no experience with that then
do you mean instead of using QObject::connect() you are connecting a signal to a slot by using some js code?

[SPlatten]

No I'm using QObject::connect:

cnSignal = QObject::connect(this
                           ,&clsQtTextEdit::jsonTextChanged
                           ,[pobjScriptEng, strCall, strFile, strScript](QJsonObject objJSON) {
                                QString strJSON = clsXMLnode::strJSON(objJSON)
                                       ,strScriptWithCall = static_cast<QString>(strScript)
                                                          + static_cast<QString>(strCall)
                                                          + static_cast<QString>("(" + strJSON + ");");
                                pobjScriptEng->evaluate(strScriptWithCall);
                            });

[ODБOï]

@SPlatten i have definitely no experience with that but i see this method, maybe it can help ..

    QJSEngine myEngine;
    myEngine.installExtensions(QJSEngine::ConsoleExtension);
    QJSValue fun = myEngine.evaluate("(function(a, b) {  console.log(  a + b ) ; })");
    QJSValueList args;
    args << 1 << 2;
    QJSValue threeAgain = fun.call(args);

[SPlatten]

console.log isn't available when using the Qt JavaScript engine, that is the function I would have used instead of console.info if it was available.

[ODБOï]

@SPlatten you can make it available by calling QJSEngine::installExtensions()

[SPlatten]

@LeLev said in console functions:

installExtensions

I already have this in my C++ engine:

     clsScriptHelper::mspobjJSeng->installExtensions(QJSEngine::AllExtensions);

[SPlatten]

As pointed out by @LeLev , the link:
installExtensions

Shows in the text that using:
QJSEngine::ConsoleExtension

Should give console.log, however I've passed:
QJSEngine::AllExtensions

And I do not get console.log, however console.info works.

Anyone ?

[mrjj]

Hi
The docs talks about
CONFIG+=qml_debug
in .pro file.
Im not sure if its related to that.

[SPlatten]

@mrjj, thank you, added that to pro file console.log now works. console.dir still doesn't.

[mrjj]

@SPlatten said in console functions:

console.dir

Are you sure this is included?
I have not seen it mentioned in the docs.

[SPlatten]

@mrjj , sorry I just assume that since console.log, console.info are part of the functions that are available in JavaScript when using Node.js that console.dir would also be present.

[mrjj]

@SPlatten
Hi
Its a valid assumption but i cant find any reference to it- so it seems not included.

[Bonnie]

@SPlatten
No, it is not.
You can check the available Console API.