Naming series custom

Hi @AmateurDeveloper,

Please check the reference:

frappe.ui.form.on('Driver', {
    type: function(frm) {
        if (frm.doc.type == 'Driver') {
            frm.set_value('naming_series', 'DRV-');
        } else if (frm.doc.type == 'Kernet') {
            frm.set_value('naming_series', 'KRN-');
        }
    }
});

Thank You!