Home > blockly > FocusManager > isRegistered
FocusManager.isRegistered() method
Returns whether the specified tree has already been registered in this manager using registerTree and hasn't yet been unregistered using unregisterTree.
Signature:
isRegistered(tree: IFocusableTree): boolean;
Parameters
| Parameter | Type | Description |
|---|---|---|
| tree | IFocusableTree |
Returns:
boolean