WebSocket.onopen

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

**WebSocket.onopen**属性定义一个事件处理程序,当WebSocket 的连接状态readyState 变为1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

规范

Specification
WebSockets
# dom-websocket-onopen

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
open event

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support