IsObject(null) returns null, not false

[elenaparaschiv]

Problem:
The function isObject should return true or false, depending if the supplied parameter is a true object, but if we call it with null it will return null

isObject(null)
//returns null

Solution:
If we wrap the value inside !! we avoid this edge case, ensuring false will be returned if the parameter is null

isObject(null);
// returns false

[asutosh97]

Rightly pointed out. I was also going through the codebase and figured it out now. Thought of making a PR, but saw yours. Good job 👍