-
canRedo()
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Returns whether a content edit operation is available to redo.
Returns:
Whether an operation can be redone.
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Type
-
boolean
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canUndo()
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Returns whether a content edit operation is available to undo.
Returns:
Whether an operation can be undone.
-
Type
-
boolean
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redo()
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Reapplies the most recently undone content edit operation.
Returns:
The redone history entry, or null if no operation can be redone.
-
Type
-
object
|
null
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undo()
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Undoes the most recent content edit operation.
Returns:
The undone history entry, or null if no operation can be undone.
-
Type
-
object
|
null