Web/API/RTCDataChannel/ordered

This is an experimental technologyCheck the Browser compatibility table carefully before using this in production.

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 RTCDataChannelInit object passed as RTCPeerConnection.createDataChannel()'s options parameter.

Syntax

var ordered = aDataChannel.ordered;

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

Example

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

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

Specifications

Specification	Status	Comment
WebRTC 1.0: Real-time Communication Between BrowsersThe definition of 'RTCDataChannel.ordered' in that specification.	Candidate Recommendation	Initial specification.

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`ordered` Experimental'	Chrome Full support 56	Edge Full support ≤79	Firefox Full support Yes	IE No support No	Opera Full support 43	Safari No support No	WebView Android Full support 56	Chrome Android Full support 56	Firefox Android Full support Yes	Opera Android Full support 43	Safari iOS No support No	Samsung Internet Android Full support 6.0

Legend

Full support: Full support
No support: No support
Experimental. Expect behavior to change in the future.': Experimental. Expect behavior to change in the future.