javascript - Giving different number variables to different browsers in Node.js -
i trying give different numbers each of clients. when click button on first browser must usernumber 1 , when in second browser expect usernumber 2. says usernumber 2 when press button twice or more.
after press button on second browser, open first browser , press button, says usernumber 2 , when press 2 or more times says usernumber 1.
so not stable @ , have press button keep in correct value.
if run files see mean better. use google chrome, express version 3.0.0 , socket.io version 0.9.16.
here app.js , index.html files:
index.html
<!doctype html> <html> <head> <meta charset="utf-8" /> <title> client number </title> <script src="http://code.jquery.com/jquery-latest.min.js"></script> <script src="/socket.io/socket.io.js"></script> <script> var ax; jquery(function($) { var socket = io.connect(); socket.emit('getbrowser1', {}); socket.on('getbrowser1f', function(data) { ax = data; }); var butondene1 = document.getelementbyid("butondene1"); butondene1.addeventlistener('click', function() { socket.emit('getbrowser1', {}); document.getelementbyid("playerwho").innerhtml = "usernumber " + ax; }); }); </script> </head> <body> <button id="butondene1">butondeneme1</button> <text id="playerwho">player ? </text> </body> </html> app.js
var express = require('express'), app = express(), server = require('http').createserver(app), io = require('socket.io').listen(server); var usernumm = 0; var usernum1 = []; app.use(express.static(__dirname + '/')); server.listen((process.env.port || 5000)); io.sockets.on('connection', function(socket) { var endpoint = socket.manager.handshaken[socket.id].address; console.log('***new connection ' + endpoint.address + ':' + endpoint.port); usernumm++; usernum1[usernumm] = endpoint.port; console.log('usernum' + usernumm + 'geldi' + findusernum()); socket.on('disconnect', function() { usernumm--; console.log('***client disconnected'); }); socket.on('getbrowser1', function(data) { var = findusernum(); io.sockets.emit('getbrowser1f', a); }); //finds number of online users function findusernum() { (var = 0; < 4; i++) { if (usernum1[i] == endpoint.port) { return i; } else {} } } });
i cannot reproduce described behaviour, endpoint.port not different different clients. might want use uuid instead.
beside have diffent logical problem within code.
when connection happens write:
usernumm++; usernum1[usernumm] = endpoint.port; and on disconnect have:
usernumm--; lets assume have following connection order:
usera connects (usernumm++ => 1) userb connects (usernumm++ => 2) usera disconnects (usernumm-- => 1) userc connects (usernumm++ => 2) << here overwrite data of userb beside have:
for (var = 0; < 4; i++) { if (usernum1[i] == endpoint.port) { return i; } else {} } the problem here start loop @ 0 index 0 of our usernum1 undefined because use usernumm after increment. not problem here, makes code hard read because assume there @ maximum 4 users can have 3.
but problem instead of socket.manager.handshaken[socket.id].address can either use incrementing number (depends on how long service run) or uuid or random number not used connected user.
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