What is a controlled form in React?
Model answer
The input value comes from state and an onChange handler updates the state: <input value={name} onChange={(e) => setName(e.target.value)} />. React is the single source of truth, so you can validate while typing or disable a button until the form is valid.
On submit, call e.preventDefault() and use the state.
Learn this topic
React Router: Multiple Pages, Links, Params, Layouts and Protected Routes in the course React.js Full Course: Beginner to Advanced.
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