This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The property RTCSessionDescription.type is a read-only value of type RTCSdpType which describes the description's type.
Syntax
var value = sessionDescription.type; sessionDescription.type = value;
Value
The possible values are defined by an enum of type RTCSdpType.
The allowed values are those of an enum of type RTCSdpType:
"offer", the description is the initial proposal in an offer/answer exchange."answer", the description is the definitive choice in an offer/answer exchange."pranswer", the description is a provisional answer and may be changed when the definitive choice will be given.- "
rollback", the description rolls back to offer/answer state to the last stable state.
Example
// The remote description has been set previously on pc, a RTCPeerconnection alert(pc.remoteDescription.type);
Specifications
| Specification | Status | Comment |
|---|---|---|
| WebRTC 1.0: Real-time Communication Between Browsers The definition of 'RTCSessionDescription.type' in that specification. |
Candidate Recommendation | Initial specification. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
| Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | Yes | 15 | Yes -moz- | No | ? | ? |
| Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | Opera Android | iOS Safari | Samsung Internet |
|---|---|---|---|---|---|---|---|
| Basic support | Yes | Yes | Yes | ? | ? | ? | Yes |