W3cubDocs

/Web APIs

RTCDataChannel: closing event

The closing event is sent to an RTCDataChannel just before the channel begins the process of shutting down its underlying data transport.

This event is not cancelable and does not bubble.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

js

addEventListener("closing", (event) => {});

onclosing = (event) => {};

Event type

A generic Event.

Description

While the closing event is sent to the channel just before beginning to close the channel's data transport, the close event is sent once the closing process is complete.

Examples

This example updates a connection status interface when the closing event arrives.

First, an example using addEventListener():

js

dataChannel.addEventListener("closing", (ev) => {
  myConnectionStatus.icon = closingIcon;
  myConnectionStatus.text = "Connection closing";
});

You can also set the onclosing event handler property directly:

js

pc.onclosing = (ev) => {
  myConnectionStatus.icon = closingIcon;
  myConnectionStatus.text = "Connection closing";
};

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
closing_event 81 81 No No 68 15.4 81 81 No 58 15.4 13.0

See also

© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/RTCDataChannel/closing_event