Programmer's Guide > Interfaces > W3C MutationEvent interface > AttrChangeType enumeration
  
AttrChangeType enumeration
An integer indicating in which way the Attr was changed.
The AttrChangeType enumeration has the following constants of type unsigned short.
MODIFICATION = 1
The Attr was modified in place.
ADDITION = 2
The Attr was just added.
REMOVAL = 3
The Attr was just removed.