`RTCDataChannel` `error` event should be of type `RTCErrorEvent`

[nikwen]

Code that should compile but doesn't

const peerConnection = new RTCPeerConnection();

peerConnection.addEventListener("datachannel", (event) => {
  event.channel.addEventListener("error", (event) => {
    console.error(event.error);
  });
});

TypeScript complains: "TS2339: Property error does not exist on type Event"

Reason

The RTCDataChannel error event should be of type RTCErrorEvent. In the type declarations, it's of type Error.

Reference

• https://www.w3.org/TR/webrtc/#event-datachannel-error
• https://developer.mozilla.org/en-US/docs/Web/API/RTCDataChannel/error_event