Problem with LocalStorage

[witusx93]

Hello,
I started using Qt and I have a project in which I have to use LocalStorage. I dont know how exactly it works.
I checked this page: [http://doc.qt.io/qt-5/qtquick-localstorage-qmlmodule.html ](link url)
but I still dont know how to use it in bigger project.
For example how to write my own function that returns a row and use it in other file.qml