import { Manager } from "socket.io-client"; const manager = new Manager("ws://localhost:8080"); const socket = manager.socket("/"); socket.on("connect", () => { console.log(`connect ${socket.id}`); }); socket.on("disconnect", () => { console.log(`disconnect`); }); setInterval(() => { socket.emit("ping", () => { console.log("pong"); }); }, 1000);