import QtQuick

Window {
    id: rooId
    width: 640
    height: 480
    visible: true
    title: qsTr("Behavior")


    Rectangle{
        id: containerRectId
        anchors.fill: parent
        color: "beige"

        Rectangle{
            id: containedRectId
            width: 100
            height: 100
            x: 50
            y: 50
            color: "dodgerblue"

            Behavior on x{
                NumberAnimation{
                    duration: 1000
                }
            }
        }

        MouseArea{
            anchors.fill: parent
            onClicked: (mouse) => { //Arrow function
                   containedRectId.x = mouse.x
             }
        }
    }
}