ESLint has released the first beta versions of v8 🎉
https://eslint.org/blog/2021/08/eslint-v8.0.0-beta.0-released
https://eslint.org/blog/2021/08/eslint-v8.0.0-beta.1-released
https://eslint.org/blog/2021/09/eslint-v8.0.0-beta.2-released
https://eslint.org/blog/2021/09/eslint-v8.0.0-rc.0-released

It would be awesome to have official ESLint 8 support. 👊
I'm happy to help where I can of course 🙂
code: normalizeIndent`
        function MyComponent() {
          const ref = useRef() as React.MutableRefObject<HTMLDivElement>;
          useEffect(() => {
            console.log(ref.current);
          }, []);
        }
      `,
    },
    {
      code: normalizeIndent`
        function MyComponent() {
          const [state, setState] = React.useState<number>(0);
          useEffect(() => {
            const someNumber: typeof state = 2;
            setState(prevState => prevState + someNumber);
          }, [])
        }
      `,
    },
    {
      code: normalizeIndent`
        function App() {
          const foo = {x: 1};
          React.useEffect(() => {
            const bar = {x: 2};
            const baz = bar as typeof foo;
            console.log(baz);
          }, []);
        }