← ⚛️ React Foundations25 / 25
Lesson 25 — Ultimate: todo app
Boss level: a real component
Combine state, lists, events and derived counts into a working todo app.
Why it matters: it mirrors a real feature end to end.
Task
Add and toggle todos; show remaining count.
Keep going with React Foundations
Ready for more? These paid resources pick up where this lesson leaves off.
UdemyBestsellers
Top-rated React Foundations courses
Project-based React Foundations video courses — the perfect paid next step after these free lessons.
Browse on Udemy →AmazonReader picks
Best React Foundations books
Hand-picked React Foundations books to master the fundamentals offline.
See on Amazon →Some links on this page are affiliate links: we may earn a commission at no extra cost to you. We only recommend tools we believe are genuinely useful.