socket.io client side in nodejs app

i am using socket.io for communication between server and client. My client side is not a html. My client side is javascript file. so here is my code of client side

var io = require('socket.io-client') var socket = io.connect('http://localhost:3000/home');

socket.on('connect', function () {

console.log(' Connected!');

});

On server side i have received the connection event but on client side connect event doesn't fire. I have tested through html way, it works but why its not working through a java script file.

via I.ali