The ultimate tutorial on building forms in React 📝
A detailed React forms tutorial covering HTML, useActionState, TanStack Form with Zod, multistep forms and field arrays.
I came across an excellent, extremely detailed tutorial on building forms in the React ecosystem on Upskills.
The author gradually dives into the depths of form building, taking the topic from basic concepts to the hardcore stuff:
- The basics: Starts with pure HTML solutions and shows why the classic approach of adding
useStatefor every field and error is a direct route into the abyss as you scale. - The native approach: Explores the new
useActionStatehook, which covers a huge number of real-world cases without pulling in heavy third-party libraries. - Advanced level: Shows how to build complex multistep forms with TanStack Form + Zod. At this stage, it is crucial to store enormous state correctly, avoid losing data between steps and keep constant validation from killing performance.
- Dynamic data: Separately covers field arrays, for example when you need to build an editable table with dynamically changing data.
The article touches on lots of practical details you encounter in real production work. I strongly recommend reading it if you often work with complex, heavy forms.