For <input type="text"> the event type is React.ChangeEvent
For <textarea> is React.ChangeEvent
For <select> we use React.ChangeEvent
React Typescript cheatsheet: form elements and onChange event types
const h1Ref = useRef<HTMLHeadingElement>(null);
const divRef = React.useRef<HTMLDivElement>(null);
const buttonRef = React.useRef<HTMLButtonElement>(null);
const brRef = React.useRef<HTMLBRElement>(null);
const linkRef = React.useRef<HTMLLinkElement>(null);