You can simply use the TagManager
object, e.g.
function () {
if (TagManager.dataLayer.get('mtm.clickElement') && TagManager.dataLayer.get('mtm.clickElement').getAttribute('data-name')) {
return TagManager.dataLayer.get('mtm.clickElement').getAttribute('data-name');
} else {
return "";
}
}
Will store the value of the attribute “data-name” of the clicked element.