[Web App/Node.js Express] JSON

[app.js]

app.use('/', routes);

[index.js]

var express = require('express');
var router = express.Router();
var users = ['choi', 'kim','park', 'lee', 'cho'];

router.get('/users/:from-:to', function(req, res){
    var from = parseInt(req.params.from, 10),
        to = parseInt(req.params.to, 10);

    res.json(users.slice(from, to + 1));
});

module.exports = router;