beforeElementAttributeMutation method

  1. @protected
void beforeElementAttributeMutation({
  1. required Element element,
  2. required String attributeName,
  3. required String? oldValue,
  4. required String? newValue,
})

Intercepts DOM element attribute mutations.

Implementation

@protected
void beforeElementAttributeMutation({
  required Element element,
  required String attributeName,
  required String? oldValue,
  required String? newValue,
}) {}