Method on

packages/alphatab/src/EventEmitter.ts:13–13

* Registers to the event with the given handler * @param value The function to call when the event occurs. * @returns A function which can be called to unregister the registered handler. * This is usedful if the original function passed to this is not stored somewhere but * unreg

(value: () => void)

     * unregistering of the event needs to be done.
     */
    on(value: () => void): () => void;
    /**
     * Unregisters the given handler from this event.
     * @param value The value originally passed into {@link on}, NOT the function returned by it.