Form validation in ReactJS | ReactJS Essentials |

Описание: In this video, I'll explain how to perform basic form validation in React using state management to track user inputs and display error messages dynamically. We'll implement a simple form with two fields: `name` and `email`, and ensure that both fields are filled out before allowing submission.

The validation logic works as follows:
1. State Management - We'll use the `useState` hook to manage the form data and validation errors. One state holds the form data, while another tracks any errors for individual fields.
2. Input Handling - The `onChange` event updates the `formData` state dynamically as the user types into the fields. This ensures the form values are always synced with the component state.
3. Validation on Submit - When the user submits the form, the `handleSubmit` function runs validation checks. It verifies that all required fields are filled. If a field is empty, an error message is added to the `errors` state for that field.
4. Displaying Error Messages - If there are validation errors, they are displayed next to the respective input fields using conditional rendering.
5. Successful Submission - If there are no errors, a success message is displayed, and the `errors` state is cleared.

By the end of this video, you’ll understand how to validate forms, manage errors, and provide instant feedback to users when their inputs are invalid. This approach is lightweight, intuitive, and enhances user experience by ensuring clean and accurate data input.

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