Baseline Widely available
The read-only RTCDataChannel property label returns a string containing a name describing the data channel. These labels are not required to be unique.
You may use the label as you wish; you could use it to identify all the channels that are being used for the same purpose, by giving them all the same name. Or you could give each channel a unique label for tracking purposes. It's entirely up to the design decisions made when building your site or app.
A unique ID can be found in the id property.
Note: A data channel's label is set when the channel is created by calling RTCPeerConnection.createDataChannel(). It cannot be changed after that.
A string identifier assigned by the website or app when the data channel was created, as specified when RTCPeerConnection.createDataChannel() was called to create the channel.
This sample creates a data channel on an RTCPeerConnection, then, some time later, sets the content of a UI element to display the channel's name.
const pc = new RTCPeerConnection();
const dc = pc.createDataChannel("my channel");
// â¦
document.getElementById("channel-name").appendChild(
Object.assign(document.createElement("span"), {
className: "channelName",
textContent: dc.label,
}),
);
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