RTCDataChannel: ordered property

The read-only RTCDataChannel property ordered indicates whether or not the data channel guarantees in-order delivery of messages; the default is true, which indicates that the data channel is indeed ordered. This is set when the RTCDataChannel is created, by setting the ordered property on the object passed as RTCPeerConnection.createDataChannel()'s options parameter.

Value

A boolean value which is true if in-order delivery is guaranteed and is otherwise false.

Example

js
const pc = new RTCPeerConnection();
const dc = pc.createDataChannel("my channel");

if (!dc.ordered) {
  // Handle unordered messaging
}

Specifications

Specification
WebRTC: Real-Time Communication in Browsers
# dom-datachannel-ordered

Browser compatibility

desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
ordered

See also