在此页

• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

The read-only property RTCPeerConnection.pendingLocalDescription 返回 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 .

句法

sessionDescription = RTCPeerConnection.pendingLocalDescription;
					

返回值

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

范例

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
}
					

规范

规范	状态	注释
WebRTC 1.0: Real-time Communication Between Browsers The definition of 'RTCPeerConnection.pendingLocalDescription' in that specification.	候选推荐	最初的规范。

浏览器兼容性

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. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
pendingLocalDescription	Chrome 70	Edge ≤18	Firefox 22	IE No	Opera 43 43 Promise-based version. 不支持 37 — 43	Safari 11	WebView Android 70	Chrome Android 70	Firefox Android 44	Opera Android 43 43 Promise-based version. 不支持 37 — 43	Safari iOS Yes	Samsung Internet Android 6.0

图例

完整支持

完整支持

不支持

不支持

见实现注意事项。

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

另请参阅

• RTCPeerConnection.setLocalDescription() , RTCPeerConnection.currentLocalDescription , RTCPeerConnection.localDescription
• RTCPeerConnection.setRemoteDescription() , RTCPeerConnection.remoteDescription , RTCPeerConnection.pendingRemoteDescription , RTCPeerConnection.currentRemoteDescription
• WebRTC

元数据

• 最后修改： Jan 24, 2020

相关话题

1. WebRTC API
2. WebRTC Guides

   1. WebRTC Architecture
   2. WebRTC Basics
   3. WebRTC Protocols
   4. Dealing with connectivity
   5. Overview of WebRTC interfaces
   6. Lifetime of a WebRTC Session
   7. Using data channels
3. WebRTC Tutorials

   1. Interoperability with adapter.js
   2. Taking still photos from the camera
   3. A simple data channel example
4. 接口

   1. RTCPeerConnection
   2. RTCSessionDescription
   3. RTCIceCandidate
   4. RTCPeerConnectionIceEvent
   5. MessageEvent
   6. MediaStream
   7. RTCStatsReport
   8. RTCIdentityEvent
   9. RTCIdentityErrorEvent
   10. MediaStreamEvent
   11. MediaStreamTrack
   12. MediaDevices
5. 文档编制：
6. 有用清单

   1. Pages tagged "WebRTC"
7. 贡献

   1. WebRTC doc status
   2. MDN 工程