<button id="dropdownbutton" type="button">Actions</button>
<script>
    $("#dropdownbutton").kendoDropDownButton({
        items: [
            { id: "new-item", text: "New" },
            { id: "edit-item", text: "Edit" },
            { id: "delete-item", text: "Delete" },
            { id: "duplicate-item", text: "Duplicate" }
        ]
    });
    
    // Later you can access items by their id
    var dropdownbutton = $("#dropdownbutton").data("kendoDropDownButton");
    console.log("Item with id 'edit-item':", dropdownbutton.items().filter('[data-id="edit-item"]'));
</script>