typeof names the kind of a value. null is a historical quirk (typeof null === "object").

Goal

Log typeof for string, number, boolean, null, and undefined.

console.log(typeof "Nairobi");
console.log(typeof 12);
console.log(typeof true);

console.log(typeof null);
console.log(typeof undefined);

let units;
console.log(units);
units = 8;
console.log(units);

const city = "Kisumu";
console.log(typeof city, city);