Fired from the form when ajaxMode is enabled. This event is to be used for submitting ajax style forms. It’s important to use this event to process the sending of your form rather than the native submit event.

field.addEventListener('nb:submit', function(e) {
    // Get the ID for this field
    var id =;
    // Get error message
    var error = e.detail.error;
    // Get result object
    var result = e.detail.result;