Why React Hook useState uses const and not let

Question

The standard way to use a React useState Hook is the following:

const [count, setCount] = useState(0);

However this const count

Answer 1

const is a guard against reassigning the value of the reference within the same scope.

From MDN

It does not mean the value it holds is immutable, just that the variable identifier cannot be reassigned.

Also

A constant cannot share its name with a function or a variable in the same scope.