javascript - typeof typeof x returns string and not object since type of null is object

Question

I am new to js, trying to learn js, can you guys tell me why typeof typeof x returns string, providing code snippet below, if i understand this simple concept it will help me more:

var x=null;
console.log(typeof typeof x);

Answer 1

typeof x returns a string representation of the type of x. So, naturally, typeof typeof x is string.

From MDN:

The typeof operator returns a string indicating the type of the unevaluated operand.