Java null type has only one value: null.
A null value is an empty object pointer.
'typeof null' returns "object":
let car = null; console.log(typeof car); // "object"
When defining a variable that will hold an object, we should initialize the variable to null.
The value undefined is a derivative of null:
console.log(null == undefined); // true
Using the equality operator (==) between null and undefined always returns true.