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开源

WebSocket.onping

WebSocket 连接 ping 事件的处理程序。对于多个同时的事件处理程序，请使用 WebSocket.addEventListener()。

示例

一个初始化 WebSocket 连接并设置 ping 事件处理程序的 k6 脚本。

JavaScript 
import { WebSocket } from 'k6/experimental/websockets';

export default function () {
  const ws = new WebSocket('wss://quickpizza.grafana.com/ws');

  ws.onping = () => {
    console.log('A ping happened!');
    ws.close();
  };

  ws.onclose = () => {
    console.log('WebSocket connection closed!');
  };

  ws.onopen = () => {
    ws.send(JSON.stringify({ event: 'SET_NAME', new_name: `Croc ${__VU}` }));
  };
  ws.onerror = (err) => {
    console.log(err);
  };
}