<![CDATA[eval() in qml]]>I want to inject js code to my application for test purposes.

i wanted to use js eval() function but qt creator said don't use eval (M23)

ApplicationWindow{ // my app
  id:root
...
  property var warnings : "" 
  property int nbr : 0
...

    Window{// my testing window
    
      TextInput{
               id:cmd
                     // i want to write  root.warnings = "warn" 
                     //or  root.nbr = 666
      }
       Button{
        onClicked : eval(cmd.text) 
       }
    }
}

is this possible with something else than eval()
thanks

]]>https://forum.qt.io/topic/107420/eval-in-qmlRSS for NodeThu, 23 Apr 2026 18:30:54 GMTThu, 03 Oct 2019 10:12:13 GMT60<![CDATA[Reply to eval() in qml on Fri, 11 Oct 2019 07:25:23 GMT]]>It is an awesome tool ! @GrecKo thank you for the suggestion! i knew i will find a tool like this with the help of the forum guys, but this tool even exceed my expectations

]]>https://forum.qt.io/post/555582https://forum.qt.io/post/555582Fri, 11 Oct 2019 07:25:23 GMT<![CDATA[Reply to eval() in qml on Thu, 10 Oct 2019 13:00:58 GMT]]>@jsulm thx, i will try to build and test gammaray tomorrow

]]>https://forum.qt.io/post/555421https://forum.qt.io/post/555421Thu, 10 Oct 2019 13:00:58 GMT<![CDATA[Reply to eval() in qml on Wed, 09 Oct 2019 05:07:03 GMT]]>@LeLev said in eval() in qml:

should i use my Qt mingw or a standalone mingw here ?

The one delivered with Qt

]]>https://forum.qt.io/post/555078https://forum.qt.io/post/555078Wed, 09 Oct 2019 05:07:03 GMT<![CDATA[Reply to eval() in qml on Tue, 08 Oct 2019 15:12:16 GMT]]>@GrecKo how to build it ? My QtQuick project uses Qt 13.0 and mingw73_64
there is a Install.txt file in the project it says :

 // Building on Windows with MinGW:
//Make sure you have the path to the MinGW programs in %PATH% first, for example:
% set "PATH=c:\MinGW\mingw64\bin;%PATH%"
Now build:
% mkdir build
% cd build
% cmake -G "MinGW Makefiles" ..
% mingw32-make
% mingw32-make install

should i use my Qt mingw or a standalone mingw here ?

]]>https://forum.qt.io/post/554986https://forum.qt.io/post/554986Tue, 08 Oct 2019 15:12:16 GMT<![CDATA[Reply to eval() in qml on Tue, 08 Oct 2019 14:58:37 GMT]]>@GrecKo said in eval() in qml:

have you checked https://www.kdab.com/development-resources/qt-tools/gammaray/ ?

No, i will.
thank you

]]>https://forum.qt.io/post/554984https://forum.qt.io/post/554984Tue, 08 Oct 2019 14:58:37 GMT<![CDATA[Reply to eval() in qml on Tue, 08 Oct 2019 14:29:09 GMT]]>If you want to modify property for some live debugging, have you checked https://www.kdab.com/development-resources/qt-tools/gammaray/ ?

]]>https://forum.qt.io/post/554978https://forum.qt.io/post/554978Tue, 08 Oct 2019 14:29:09 GMT<![CDATA[Reply to eval() in qml on Tue, 08 Oct 2019 14:13:51 GMT]]>@fcarney thx,

i found exactly what i need, but not tested yet https://github.com/qtproject/qt-solutions/tree/master/qtpropertybrowser

do you know this project ? do you think i can use it with qtquick project ?

]]>https://forum.qt.io/post/554971https://forum.qt.io/post/554971Tue, 08 Oct 2019 14:13:51 GMT<![CDATA[Reply to eval() in qml on Tue, 08 Oct 2019 13:54:38 GMT]]>@LeLev said in eval() in qml:

I want to inject js code to my application for test purposes.

Sorry, I totally missed that and went to the code. Maybe you can do it from the C++ side? Return the results to the QML side?

]]>https://forum.qt.io/post/554965https://forum.qt.io/post/554965Tue, 08 Oct 2019 13:54:38 GMT<![CDATA[Reply to eval() in qml on Thu, 03 Oct 2019 19:12:20 GMT]]>@fcarney said in eval() in qml:

?!

yes (i am the user), see my first comment

@LeLev said in eval() in qml:

I want to inject js code to my application for test purposes.

]]>https://forum.qt.io/post/554298https://forum.qt.io/post/554298Thu, 03 Oct 2019 19:12:20 GMT<![CDATA[Reply to eval() in qml on Thu, 03 Oct 2019 18:39:32 GMT]]>@LeLev said in eval() in qml:

evaluate(cmd.text)

You want to eval user inputted text?! Are you going to vet that text?

]]>https://forum.qt.io/post/554290https://forum.qt.io/post/554290Thu, 03 Oct 2019 18:39:32 GMT<![CDATA[Reply to eval() in qml on Tue, 08 Oct 2019 14:14:18 GMT]]>i just saw this project https://github.com/qtproject/qt-solutions/tree/master/qtpropertybrowser

this is exactly what i need, does someone know if i can use this with QtQuick QML application ?

]]>https://forum.qt.io/post/554250https://forum.qt.io/post/554250Tue, 08 Oct 2019 14:14:18 GMT<![CDATA[Reply to eval() in qml on Thu, 03 Oct 2019 10:18:38 GMT]]>ah...
wrapping eval() solved this

ApplicationWindow{ // my app
  id:root
...
  property var warnings : "" 
  property int nbr : 0
...

    Window{// my testing window
    
      TextInput{
               id:cmd
                     // i want to write  root.warnings = "warn" 
                     //or  root.nbr = 666
      }
       Button{
                  function evaluate(str){eval(str)} // wrap
        onClicked : evaluate(cmd.text) 
       }
    }
}

however qt creator still rises the warning

]]>https://forum.qt.io/post/554212https://forum.qt.io/post/554212Thu, 03 Oct 2019 10:18:38 GMT