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EventEmitterWithErrorHandling Class

Event Emitter helper class

This API is provided for existing users, but is not recommended for new users.

To use, import via @fluidframework/telemetry-utils/legacy.

For more information about our API support guarantees, see here.

Signature​

export declare class EventEmitterWithErrorHandling<TEvent extends IEvent = IEvent> extends TypedEventEmitter<TEvent>

Extends: TypedEventEmitter<TEvent>

Type Parameters​

Parameter Constraint Default Description
TEvent IEvent IEvent

Remarks​

Any exceptions thrown by listeners will be caught and raised through "error" event. Any exception thrown by "error" listeners will propagate to the caller.

Constructors​

Constructor Alerts Description
(constructor)(errorHandler) Alpha Constructs a new instance of the EventEmitterWithErrorHandling class

Constructor Details​

(constructor)​

Constructs a new instance of the EventEmitterWithErrorHandling class

This API is provided as an alpha preview and may change without notice.

To use, import via @fluidframework/telemetry-utils/alpha.

For more information about our API support guarantees, see here.

Signature​

constructor(errorHandler: (eventName: EventEmitterEventType, error: any) => void);

Parameters​

Parameter Type Description
errorHandler (eventName: EventEmitterEventType, error: any) => void