Forms are inherently stateful — idle, validating, submitting, success, error. A state machine makes these states explicit and prevents invalid transitions.

Form states: idle → validating → submitting → success / error

Guard conditions for validation rules

Nested states for multi-step wizards

Context for form data

Forms → Data Fetching — Async form submission

Forms → Undo/Redo — Undoable form edits

Forms → Navigation — Form wizard routing

Learn: Patterns — Learning path

XState + React — React implementation

Case Study: Checkout — Real-world example

Add complete machine definition for multi-step form

Add validation state machine example

Add wizard navigation machine