A very crude imagination of how useState works internally in react (definitely wrong)

useState.js

function useState(initVal) {
    let _val = initVal;
    let state = () => _val;
    const setState = (newVal) => _val = newVal;
    return [state, setState]
}

const [c, setC] = useState(1);
console.log(c());
setC(2);
console.log(c());