Node.js curriculum

Node.js practice

Short exercises. Try them first, open the hint if you are stuck, and the solution last.

Exercise 1
Parse a config
A Node app often reads JSON config. Parse the string and print the port plus 1.
Your solutionJavaScript
Editable codeconst text = '{"name": "api", "port": 3000}'; // parse and print port + 1
Ctrl+Enter to run
Exercise 2
Build a response
Write respond(status, data) returning an object with status and a JSON string body.
Your solutionJavaScript
Editable codefunction respond(status, data) { // your code } const r = respond(200, { ok: true }); console.log(r.status, r.body);
Ctrl+Enter to run
Exercise 3
Route lookup
Given a routes object, write handle(url) returning the matching text, or Not found.
Your solutionJavaScript
Editable codeconst routes = { "/": "Home", "/about": "About us" }; function handle(url) { // your code } console.log(handle("/about")); console.log(handle("/nope"));
Ctrl+Enter to run