Usage | Node.js v6.11.3 Documentation

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# Usage#

`node [options] [v8 options] [script.js | -e "script"] [arguments]`

Please see the Command Line Options document for information about different options and ways to run scripts with Node.js.

## Example#

An example of a web server written with Node.js which responds with `'Hello World'`:

    const http = require('http');

    const hostname = '127.0.0.1';
    const port = 3000;

    const server = http.createServer((req, res) => {
      res.statusCode = 200;
      res.setHeader('Content-Type', 'text/plain');
      res.end('Hello World\n');
    });

    server.listen(port, hostname, () => {
      console.log(`Server running at http://${hostname}:${port}/`);
    });

To run the server, put the code into a file called `example.js` and execute it with Node.js:

    $ node example.js
    Server running at http://127.0.0.1:3000/

All of the examples in the documentation can be run similarly.