Method onclose

packages/socket.io-client/lib/socket.ts:662–671

* Called upon engine `close`. * * @param reason * @param description * @private

(
    reason: Socket.DisconnectReason,
    description?: DisconnectDescription,
  )

   * @private
   */
  private onclose(
    reason: Socket.DisconnectReason,
    description?: DisconnectDescription,
  ): void {
    debug("close (%s)", reason);
    this.connected = false;
    delete this.id;
    this.emitReserved("disconnect", reason, description);
    this._clearAcks();
  }

  /**
   * Clears the acknowledgement handlers upon disconnection, since the client will never receive an acknowledgement from