Interface ISharedBase

ISharedBase defines common operations that can be performed on any shared object.



disposed: ISignal<ISharedBase, void>

A signal emitted when the object is disposed.

isDisposed: boolean

Test whether the object has been disposed.


This property is always safe to access.


  • Whether the object can undo changes.

    Returns boolean

  • Whether the object can redo changes.

    Returns boolean

  • Clear the change stack.

    Returns void

  • Dispose of the resources held by the object.


    If the object's dispose method is called more than once, all calls made after the first will be a no-op.

    Undefined Behavior

    It is undefined behavior to use any functionality of the object after it has been disposed unless otherwise explicitly noted.

    Returns void

  • Redo an operation.

    Returns void

  • Perform a transaction. While the function f is called, all changes to the shared document are bundled into a single event.


    • f: (() => void)

      Transaction to execute

        • (): void
        • Returns void

    • Optional undoable: boolean

      Whether to track the change in the action history or not (default true)

    Returns void

  • Undo an operation.

    Returns void

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