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.
var value = sessionDescription.type; sessionDescription.type = 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.// The remote description has been set previously on pc, a RTCPeerconnection alert(pc.remoteDescription.type);
| Specification | Status | Comment |
|---|---|---|
| WebRTC 1.0: Real-time Communication Between Browsers The definition of 'RTCSessionDescription.type' in that specification. | Working Draft | Initial specification. |
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | (Yes) [1] | (Yes) | (Yes) [1] | No support | (Yes) | ? |
| Feature | Android | Chrome for Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | ? | ? | (Yes) | ? | No support | ? | ? |
[1] Though this property is not prefixed, the interface it belongs to is.
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https://developer.mozilla.org/en-US/docs/Web/API/RTCSessionDescription/type