RTCDataChannelEvent

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这是实验性技术
检查浏览器兼容性表格要小心谨慎在生产中使用这之前。

RTCDataChannelEvent() constructor returns a new RTCDataChannelEvent object, which represents a datachannel event. These events sent to an RTCPeerConnection when its remote peer is asking to open an RTCDataChannel between the two peers.

You will rarely if ever construct an RTCDataChannelEvent by hand; instead, the WebRTC layer will generate and deliver them to you at the appropriate time. Just listen for the datachannel event to be received by the RTCPeerConnection and when you receive it, use the RTCDataChannelEvent.channel property to gain access to the data channel which has been opened.

构造函数

RTCDataChannelEvent(): RTCDataChannelEvent() 构造函数创建新 RTCDataChannelEvent .

channel 只读: The read-only property RTCDataChannelEvent .channel 返回 RTCDataChannel 与事件关联。

范例

在此范例中， datachannel event handler is set up to save the data channel reference and set up handlers for the events which need to be monitored. The channel property provides the RTCDataChannel representing the connection to the other peer.

pc.ondatachannel = function(event) {
  inboundDataChannel = event.channel;
  inboundDataChannel.onmessage = handleIncomingMessage;
  inboundDataChannel.onopen = handleChannelOpen;
  inboundDataChannel.onclose = handleChannelClose;
}

见 A simple RTCDataChannel sample for another, more complete, example of how to use data channels.

规范

规范	状态	注释
WebRTC 1.0: Real-time Communication Between Browsers The definition of 'RTCDataChannelEvent' in that specification.	候选推荐	初始定义。

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
`RTCDataChannelEvent`	Chrome Yes	Edge ≤79	Firefox 22	IE No	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android 28	Firefox Android 22	Opera Android Yes	Safari iOS Yes	Samsung Internet Android 1.5
`RTCDataChannelEvent()` 构造函数	Chrome 57	Edge ≤79	Firefox 22	IE No	Opera 44	Safari ?	WebView Android 57	Chrome Android 57	Firefox Android 22	Opera Android 43	Safari iOS ?	Samsung Internet Android 7.0
`channel`	Chrome Yes	Edge ≤79	Firefox 22	IE No	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android 28	Firefox Android 22	Opera Android Yes	Safari iOS Yes	Samsung Internet Android 1.5

图例

完整支持
不支持
兼容性未知 ?

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构造函数

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方法

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