new Date() in Qml Js function return a TypeError

DavidM29

Hello,

I do have implement a function to get the date and time every second but once I reach the new Date() call I get a TypeError.

Here is the code I run :

    Timer {
        id: timer
        interval: 1000
        repeat: true
        running: true

        onTriggered:
        {
           getDate()

        }
     }

    function getDate(){  
        var today = new Date() //Here is the line throwing the error
        var date = Qt.formatDate(today, "dd/MM/yyyy")
        var dateTime = date

        labelOptionDate = dateTime

    }

Here is the error :

qrc:/OptionDate.qml:84: TypeError: Type error

IntruderExcluder

Provided example working fine for me:

    Timer {
        id: timer
        interval: 1000
        repeat: true
        running: true

        onTriggered: getDate()
    }

    function getDate() {
        console.log("Requesting date");
        var date = new Date();
    }

I can see call of the function every second. Qt 5.12.3.

Pradeep P N

@DavidM29 said in new Date() in Qml Js function return a TypeError:

labelOptionDate

Can you tell me what is labelOptionDate in your code ?
And from where you are accessing it ?

DavidM29

@Pradeep-P-N

labelOptionDate is a Text component in my .qml file that I update with the value but I don't reach it at this point. I'm having an error before that.

ODБOï

hi
@DavidM29 said in new Date() in Qml Js function return a TypeError:

labelOptionDate is a Text component in my .qml

then there is a type error here

labelOptionDate = dateTime

should be

labelOptionDate.text = dateTime

i often do this mistake

DavidM29

@LeLev
Sorry I did not explain properly.
It is a property that I use to set the Text of a Text component...
The code I'm running used to work on another computer and still running on another one...

property string labelOptionDate: getDate()

Text {
                    id: textOption
                    text: labelOptionDate // Here is my labelOptionDate use
                    color: Style.textColor
                    font.family: localFont.name
                    font.pixelSize: Style.globalTextSize
                    anchors.verticalCenter: parent.verticalCenter
                }

ODБOï

ok
@DavidM29 said in new Date() in Qml Js function return a TypeError:

property string labelOptionDate: getDate()

this means labelOptionDate is = to the value returned by getDate(), but it returns nothing

try

property string labelOptionDate: "" // don't call the function here, let this empty , the function called by the timer will update this every second

DavidM29

@LeLev
Sorry for the delay...
I don't know why but the day after the problem was gone... Maybe my clean and rebuild was not completely made...

But anyways @LeLev I took your remarks in consideration and changed my code in that way.

Thank you for the help

ODБOï

@DavidM29
Perfect!
Make sure you mark this as SOLVED topic