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  1. Qt
  2. QTBUG-99145

Add 'filter' method to QML list type

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      JavaScript arrays have a filter method that allows one to create a new list that includes selective elements from the source list.

      It would be nice to have a filter method on the QML list type, which would do the same thing, only operating on QML lists instead of JavaScript arrays.

      Suggested syntax would be exactly the same as the JavaScript Array.prototype.filter method.

      An example that I was expecting to work is below and attached:

      import QtQuick
import QtQuick.Controls
import QtQuick.Layouts

ApplicationWindow {
    width: 640
    height: 480
    visible: true

    ColumnLayout {
        anchors.fill: parent

        Component.onCompleted: {
            var words = [ "Apple", "Pear", "Orange", "Banana", "Melon", "Dragonfruit" ];
            function eFilterArray(currentElement) {
                return currentElement.includes("e");
            }
            console.log("Array " + words + " length: " + words.filter(eFilterArray));
            function eFilterText(currentElement) {
                return currentElement.text.includes("e");
            }
            var eChildren = children.filter(eFilterText, 0);
            console.log("Number of fields that contain 'e' in their text: " + eChildren);
        }

        Text { text: "Apple" }
        Text { text: "Pear" }
        Text { text: "Orange" }
        Text { text: "Banana" }
        Text { text: "Melon" }
        Text { text: "Dragonfruit" }
    }
}

        1. listfilter.qml
          1.0 kB
          Keith Kyzivat
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            qtqmlteam Qt Qml Team User
            kkyzivat Keith Kyzivat
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              Created:
              Updated:

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