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Context.once() method
The “bind” event is emitted when a new binding is added to the context. The “unbind” event is emitted when an existing binding is removed.
Signature:
once(eventName: 'bind' | 'unbind', listener: ContextEventListener): this;
Parameters
| Parameter | Type | Description |
|---|---|---|
| eventName | 'bind' \| 'unbind' | The name of the event - always `bind` or `unbind`. |
| listener | [ContextEventListener](/doc/en/lb4/apidocs.context.contexteventlistener.html) | The listener function to call when the event is emitted. |
Returns:
this