Proper form submission handling is essential for creating responsive user interfaces and preventing unwanted page reloads in React applications. As the creator of CoreUI, a widely used open-source UI library, I’ve implemented form submission logic in hundreds of production components over my 25 years of development experience. From my expertise, the best approach is to use the onSubmit event handler on the form element combined with preventDefault() to maintain full control over the submission process. This pattern ensures smooth user experience and proper data handling.