update method

Future<void> update({ Map<String, dynamic>? data, List? fieldsAndValues, })

Updates fields in the document referred to by this DocumentReference. The update will fail if applied to a document that does not exist.

Nested fields can be updated by providing dot-separated field path strings or by providing FieldPath objects.

The data param is the Map containing all of the fields and values to update.

The fieldsAndValues param is the List alternating between fields (as String or FieldPath objects) and values.

Returns non-null Future that resolves once the data has been successfully written to the backend (Note that it won't resolve while you're offline).

Implementation

Future<void> update(
        {Map<String, dynamic>? data,
        List< /*String|FieldPath|dynamic*/ dynamic>? fieldsAndValues}) =>
    handleThenable(_wrapUpdateFunctionCall(jsObject, data, fieldsAndValues));