Create a function that takes a value as an argument and returns the type of this value. You should get the real type of a value (JavaScript typeof doesn't return the real object type of values and you need to fix that).
realType(1) ➞ "number"
realType("a") ➞ "string"
realType(true) ➞ "boolean"
realType([]) ➞ "array"
realType(null) ➞ "null"
N/A