React Mastery Day 12: How Controlled Components Power Forms in React

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Day 12 of the React Mastery Series focuses on building forms using React's controlled component pattern. Unlike traditional HTML forms where the browser manages input values, React stores form data in component state, making it the single source of truth. Developers use the value and onChange properties together to keep inputs in sync with state, and a single state object can manage multiple fields using JavaScript's computed property name syntax. Form submissions are handled by calling event.preventDefault() to stop the default browser page refresh, allowing developers to validate data and call APIs instead. The article also covers basic client-side validation techniques such as checking required fields, email format, and password rules using conditional rendering.

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