WebSocket.onopen - Web API 接口参考 编辑

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

An EventListener.

规范

Specification	Status	Comment
HTML Living Standard WebSocket: onopen	Living Standard	Initial definition

浏览器兼容性

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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.