config xampp for nodejs

Why do I see the following page on the Apache Web Server

Displays the code of the page?

http://localhost/main.js

I install Windows Installer.

I'm running all the code written in the Command Prompt But this code can not see inside the browser

In other words,

How do I run nodejs code in a browser ?

update,

My Code :

var http = require('http');
http.createServer(function (req, res) {
    res.writeHead(200, {
        'Content-Type': 'text/plain'
    });
    res.end('Hello World\n');
}).listen(1337, '127.0.0.1');
console.log('Server running at http://127.0.0.1:1337/');