Resets the current undo state and creates a new UndoManager.
Provides a means for implementing your own undo manager. options has one property, args, an [[Array Array]], with two elements:
args[0] is an array of deltasargs[1] is the document to associate withMarks the current status clean
Returns true if there are redo operations left to perform.
Returns true if there are undo operations left to perform.
Returns if the current status is clean
[Perform a redo operation on the document, reimplementing the last change.]{: #UndoManager.redo}
Destroys the stack of undo and redo redo operations.
[Perform an undo operation on the document, reverting the last change.]{: #UndoManager.undo}
The range of the undo.
Generated using TypeDoc
This object maintains the undo stack for an
EditSession.