The JadeRichText control supports standard clipboard operations and multiple levels of undo and redo operations, to a maximum of 100 undo or redo operations.
The output parameters of the getRedoAndUndoState method indicate whether a paste, redo, or an undo operation can be performed. The getRedoAndUndoState method also indicates the type of undo or redo action that can be performed.
You can call the undo or redo method to undo an action or reapply the last edit operation dynamically at run time.