Is there a way to determine if a variable is an initialized DataTable or not? I'm basically trying to do this:

if (isDataTable(variable)) {

    // datatable ... do datatable stuff

} else {

    // not a datatable... do other stuff

}

I assumed $.fn.dataTable.isDataTable() could be used, but this only works for table selectors, not for variables containing an initialized DataTable. This function is returning false for such variables (EDIT: the creator of DataTables has since extended $.fn.dataTable.isDataTable() in this commit so that this is no longer true):

var table = $("#table").DataTable(); // Valid initialized DataTable

console.log($.fn.dataTable.isDataTable("#table")); // Returns true

console.log($.fn.dataTable.isDataTable(table)); // Returns false...why?