Import JS modules in client side of a node.js app

Question

Import JS modules in client side of a node.js app

What is the standard way to import JS modules on the client side of a node.js app?

It seems bad to add <script src="..."></script>, but I don't see what else I can do.

Update:

Here is the code of the server:

var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);

app.get('/', function(req, res){
  res.sendfile('index.html');
});

io.on('connection', function(socket){
  socket.on('chat message', function(msg){
    io.emit('chat message', msg);
  });
});

http.listen(3000, function(){
  console.log('listening on *:3000');
});

And the client:

<!doctype html>
<html>
  <head>
    <title>Website</title>
    <script src="jquery.js"></script> (doesn't work)
  </head>
  <body>
  </body>
</html>

node.js

Answer 1

Do this in your index.js:

var module = require('module');

exports.index = function(req, res) {
    res.render('index', { module : module});
    //Now your EJS will have the module
}