npm install express (node package manager)로 설치 const express = require('express'); const app = express(); const users = ['Tom', 'Andy', 'Jessica', 'Paul']; app.get('/', (request, response) => { response.end('

Welcome!

'); }); app.get('/users', (request, response) => { response.end(`

${users}

`); }); app.get('/users/:id', (request, response) => { const userName = users[request.params.id - 1]; response.end(`

${userName}

`); }); app.get('*', (request, response) => { response.en...