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OverviewFelgo 3 Support (Qt 5) › Problem with date.toLocaleString with locale and options

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  • #19428



    I’m trying to get the following to diplay the date and time without the timezone:

    var d = new Date()

    which currently returns

    ”Friday, June 1, 2018 9:17:44 AM Alaskan Daylight Time”.

    I’d like to change how this is returned, primarily I want to remove the timezone information. However, when I try to use options as described at https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleDateString, I get an invalid date format error.

    If I do something like (but with all the output I want)

    console.debug(d.toLocaleString(Qt.locale(“en-US”), “M-yyyy”)

    It seems to remove the auto-format that I want from toLocaleString.

    Is there any way to pass options so that only the actual date/time elements I want to display are actually displayed but the auto-format is preserved?

    Thank you,


    Felgo Team


    QML is does not always support JavaScript in 100% the same way as in the browser. For example, the QML toLocaleDateString method for date types does not take options as the second argument, but a format identifier.

    You can have a look at the Qt docs linked above, as well as this example:

     var d = new Date()
          // show date format for locale
          console.log("FORMAT en-US: "+Qt.locale("de-AT").dateTimeFormat())
          console.log("FORMAT de-AT: "+Qt.locale("de-AT").dateTimeFormat())
          // default format
          console.debug(d.toLocaleString(Qt.locale("en-US"), Qt.locale("en-US").dateTimeFormat()))
          console.debug(d.toLocaleString(Qt.locale("de-AT"), Qt.locale("de-AT").dateTimeFormat()))
          // no timezone
          console.debug("No timezone: "+d.toLocaleString(Qt.locale("en-US"),"dddd, d. MMMM yyyy HH:mm:ss"))


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