React Form Handling: Debounced Validation, Auto-Save Drafts, and Controlled Inputs

React Form Handling: Debounced Validation, Auto-Save Drafts, and Controlled Inputs Forms are the most rewritten part of every React app. They look easy on day one — slap a , wire onChange to useState , ship it. By month three, the same form has grown async username validation, an auto-saved draft, a custom date popover, and a controlled-or-uncontrolled toggle that has to play nicely with the design system. Each of those features pulls in its own ad-hoc state machine, its own effect cleanup, and