prevent a page from refreshing in react

1function onLinkClick(e) {
2   e.preventDefault();
3   // further processing happens here
4}
5
6<a href="/my-invoice-link" onClick={onLinkClick} />
7

1   function handleSubmit(event) {
2      event.preventDefault();
3    }
4
5
6	<form onSubmit={handleSubmit}></form>