javascript - Is it possible to keep an id for WebSocket in js -


i'm trying create dialogue system using websockets on both client , server side. goal keep list of connections can iterate through them fast , ws value it's user id.
planning save websocket in array key id of it's owner don't know if can save additional info in websocket instance , if user can read or change data it?
what's safest , fastest way save data?

my current code is:

const websocketserver = require('ws').server;      var wss = new websocketserver({    server: httpsserver });  connected = []; count = 0; wss.on('connection', function(ws) {     ws.on('message', function incoming(message) {         console.log('received: %s', message);         data = json.parse(message);         type=data[0];         if(type == 0){             connected[data[1][0]] = ws;             ws.id = data[1][0];             console.log(ws.id);         } else if (type == 1){             touser = connected[data[1][0]];             touser.send(data[1][1]);         }     });     ws.on('close', function (ws) {             console.log(ws.id);             connected.slice(ws.id, 1);     }); });

i understand don't change ws variable when message cause log in close me undefined how think should work.


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