[Home](./index.md) > [@soulmachines/smwebsdk](./smwebsdk.md) > [SmEvent](./smwebsdk.smevent.md) ## SmEvent class An event which can have a set of listeners registered against it using addListener(). **Signature:** ```typescript export declare class SmEvent ``` ## Methods | Method | Modifiers | Description | | --- | --- | --- | | [addListener(callback)](./smwebsdk.smevent.addlistener.md) | | Register a new listener for this event. | | [call(args)](./smwebsdk.smevent.call.md) | | Trigger the event, calling each registered listener, and passing on any parameters. | | [removeListener(callback)](./smwebsdk.smevent.removelistener.md) | | Deregister a existing listener for this event. |