const express = require('express'); const state = require('./state.js'); const b = require('./b.js'); const PORT = 3002; const app = express(); const server = app.listen(PORT, () => console.log(`Example app listening on port ${PORT}!`)); app.get('/', (req, res) => { let i = state.a; b.test(i += 1); return res.send('
' + JSON.stringify(state) + '
') });