web socket

server.js

const WebSocket = require('ws');

const wss = new WebSocket.Server({ port: 8080 });



wss.on('connection', function connection(ws) {
  ws.on('message', function incoming(data) {
    console.log("reveice : " + data)

      if (ws.readyState === WebSocket.OPEN) {
       // 
        for ( var i = 0 ; i < 100 ; i ++) {
			setTimeout(function() {
			    ws.send(i);
			}, 1000 * i);
		}
      }

  });
});