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RTCPeerConnection.pendingLocalDescription

The read-only property RTCPeerConnection.pendingLocalDescription returns an RTCSessionDescription object describing a pending configuration change for the local end of the connection. This does not describe the connection as it currently stands, but as it may exist in the near future. Use RTCPeerConnection.currentLocalDescription or RTCPeerConnection.localDescription to get the current state of the endpoint. For details on the difference, see Pending and current descriptions in WebRTC connectivity.

Syntax

sessionDescription = RTCPeerConnection.pendingLocalDescription;

Return value

If a local description change is in progress, this is an RTCSessionDescription describing the proposed configuration. Otherwise, this returns null.

Example

This example looks at the pendingLocalDescription to determine whether or not there's a description change being processed.

var pc = new RTCPeerConnection();
…
var sd = pc.pendingLocalDescription;
if (sd) {
  // There's a description change underway!
}
else {
  // No description change pending
}

Specifications

Specification Status Comment
WebRTC 1.0: Real-time Communication Between Browsers
The definition of 'RTCPeerConnection.pendingLocalDescription' in that specification.
Candidate Recommendation Initial specification.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support56 Yes22 ?

431

37 — 43

?
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support5656 Yes44

431

37 — 43

?6.0

1. Promise based version.

The addition of pendingLocalDescription and currentLocalDescription to the WebRTC spec is relatively recent. In browsers which don't support them, only localDescription is available.

See also

Document Tags and Contributors

Contributors to this page: fscholz, Sheppy, jpmedley
Last updated by: fscholz,