RTCDataChannel: ordered property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since January 2020.

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

See also