synthetic-event/dist/types/Event.d.ts

A collection of base classes for custom events and event targets.

/**
 * An event.
 */
export interface Event<TEventType extends string = string, TTarget = unknown> {
    /**
     * The type of the event.
     */
    type: TEventType;
    /**
     * A reference to the target to which the event was originally dispatched.
     */
    target?: TTarget;
}