How to manual disconnect from BLE UART server

No, that's not it.

The lines are in the example on your site and I just left them in.
https://www.espruino.com/Puck.js+Control­ling+Other+Pucks

To be sure I removed them but it makes no difference. Output with the setInterval:

RX  D07-06-2020 12.23
RX  SAAPL,311.01,+11.5%
RX  SASML,299.45,-4.5%
RX  Hottentottententente
RX  Quit
Quit received, disconnecting now
Getting data now
Done!
RX  D07-06-2020 12.23
RX  SAAPL,311.01,+11.5%
RX  SASML,299.45,-4.5%
RX  Hottentottententente
RX  D07-06-2020 12.23
RX  SAAPL,311.01,+11.5%
RX  SASML,299.45,-4.5%
RX  Hottentottententente
RX  D07-06-2020 12.23
RX  SAAPL,311.01,+11.5%
RX  SASML,299.45,-4.5%
RX  Hottentottententente
RX  D07-06-2020 12.23
RX  SAAPL,311.01,+11.5%
RX  SASML,299.45,-4.5%
RX  Hottentottententente
RX  Quit
Quit received, disconnecting now
Getting data now
Uncaught Error: Unhandled promise rejection: Disconnected
> 

I think I'm getting close to a "perfect" solution and in hindsite it will be a simple obvious mistake on my part. I catching up my reading om "promises" so at least I'm learning here, that's what it's all about, right!?

Appreciate your tireless help!