在此页

• 句法
• 值
• 规范
• 浏览器兼容性
• 相关话题

WebSocket.onopen property is an EventHandler that is called when the WebSocket connection's readyState changes to 1 ; this indicates that the connection is ready to send and receive data. It is called with an 事件 .

句法

aWebSocket.onopen = function(event) {
  console.log("WebSocket is open now.");
};
					

值

EventListener .

规范

规范	状态	注释
HTML 实时标准 The definition of 'WebSocket: onopen' in that specification.	实时标准	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
onopen	Chrome Yes	Edge 12	Firefox Yes	IE ?	Opera Yes	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes

图例

完整支持

完整支持

兼容性未知 ?

兼容性未知

元数据

• 最后修改： Aug 5, 2020

相关话题

1. WebSocket
2. 构造函数

   1. WebSocket()
3. 特性

   1. binaryType
   2. bufferedAmount
   3. extensions
   4. onclose
   5. onerror
   6. onmessage
   7. onopen
   8. 协议
   9. readyState
   10. url
4. 方法

   1. close()
   2. send()
5. 事件

   1. error
   2. message
6. 继承：

   1. EventTarget