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POQt Qvariantlist conversion into javascript array unsuccessful
 

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  1. POQt Qvariantlist conversion into javascript array unsuccessful
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    <p>I'm currently create an apps in Meego using QML and JS on most of the part. and now I stumbled upon a problem. </p> <p>From javascript I want to call a C++ function to read text file, parse it, and then return an array of the parsing result. so I create a Q_INVOKABLE function called parse() and call it through javascript</p> <pre><code>function parse() { var myArray = new Array(); myArray = parser.parse("/home/user/MyDocs/angklungtext.txt") if(myArray === undefined){ console.log("null found"); } for(var i = 0; i &lt; myArray.length; i++){ console.log(myArray[i][0] + "," + myArray[i][1]) } } </code></pre> <p>and here is the parse function in C++ </p> <pre><code>QVariantList* QMLParser::parse(QString filename) { qDebug() &lt;&lt; "start debugging"; qDebug() &lt;&lt; filename; qDebug() &lt;&lt; QDir::currentPath(); QDir dir; qDebug()&lt;&lt; dir.absoluteFilePath(filename); QFile file(filename); if(!file.exists()) { qDebug() &lt;&lt; "File: " &lt;&lt; file.fileName() &lt;&lt; "tidak ditemukan"; return NULL; } if(!file.open(QIODevice::ReadOnly | QIODevice::Text)) { qDebug() &lt;&lt; "Tidak dapat membuka file" &lt;&lt; file.fileName() &lt;&lt; "untuk ditulis"; return NULL; } QTextStream stream(&amp;file); QVariantList* myList = new QList&lt;QVariant&gt;; while(!stream.atEnd()) { QString line = stream.readLine(); qDebug() &lt;&lt; line.trimmed(); QStringList lineList = line.split(":"); myList-&gt;append(lineList); } file.close(); return myList; } </code></pre> <p>sadly. when I try to run it it giving a result like this</p> <pre><code>start debugging "/home/user/MyDocs/angklungtext.txt" "/home/developer" "/home/user/MyDocs/angklungtext.txt" "1:1000" "4:2000" "5:3000" "2:4000" null found file:///opt/memoryreader/qml/memoryreader/myjs.js:8: TypeError: Result of expression 'myArray' [undefined] is not an object. </code></pre> <p>looks like the C++ parse function successfully parsing the file. it can read it and it can save it into the QVariantList. but after it return the result into javascript myArray still [undefined]. is there something wrong with the conversion? </p>
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