翻译正在进行中。
WebSocket.onopen属性定义一个事件处理程序，当WebSocket 的连接状态readyState 变为“OPEN”时调用;这意味着当前连接已经准备好发送和接受数据。这个事件处理程序通过 事件（建立连接时）触发。
语法
aWebSocket.onopen = function(event) {
console.log("WebSocket is open now.");
};
返回值
An EventListener.
规范
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard WebSocket: onopen |
Living Standard | Initial definition |
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.
Update compatibility data on GitHub
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
onopen | Chrome Full support Yes | Edge Full support 12 | Firefox Full support Yes | IE ? | Opera Full support Yes | Safari ? | WebView Android ? | Chrome Android Full support Yes | Edge Mobile ? | Firefox Android Full support Yes | Opera Android ? | Safari iOS ? | Samsung Internet Android ? |
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown