Managing Multiple Inputs in React
Explore how to handle multiple form inputs in React using one unified state object. This lesson teaches you to write scalable, concise code with a single change handler that dynamically updates input fields. You'll gain skills to manage complex forms effectively, reducing repetition and preparing for advanced features like validation and conditional rendering.
Most forms have more than one field — such as name, email, and password. Using separate useState hooks for every field works, but quickly becomes repetitive. Imagine a registration form with ten fields — you’d end up writing ten state variables and ten onChange handlers.
React provides a simpler way: represent all inputs as properties inside a single state object. Each field updates its corresponding property dynamically based on the input’s name attribute. This pattern keeps the code concise and scalable while maintaining React’s controlled component principle.
Using a single state object
By grouping all fields into one state object (for example, formData), we can:
Manage all input values from one place. ...