Experimental
This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The RTCDataChannel.onopen
property is an
EventHandler
which specifies a function to be called when the
open
event is fired; this is a simple Event
which is sent
when the data channel's underlying data transport—the link over which the
RTCDataChannel
's messages flow—is established or re-established.
Syntax
RTCDataChannel.onopen = function;
Value
A function which the browser will call to handle the open
event. The
function receives as its only input parameter the event itself, of type
Event
.
Example
This example adds a new data channel to an existing RTCPeerConnection
,
myPeerConnection
. It then establishes an open
event handler
which updates some user interface elements to prepare them for being used to send
messages over the data channel.
let dc = myPeerConnection.createDataChannel("Message Channel");
dc.onopen = function(event) {
let messageBox = document.getElementById("messageBox");
let sendButton = document.getElementById("sendButton");
messageBox.disabled = false;
messageBox.focus();
sendButton.disabled = false;
}
Specifications
Specification | Status | Comment |
---|---|---|
WebRTC 1.0: Real-time Communication Between Browsers The definition of 'RTCDataChannel.onopen' in that specification. |
Candidate Recommendation | Initial specification. |
Browser compatibility
BCD tables only load in the browser