When typeof is run on a function, it returns “function” as the type. Why doesn't it return “object”?

Question

A function in Javascript is an object.

When running typeof on a function, why does it return the value "function", instead of "object"?

 var objLit = {} console.log(typeof objLit); // "object" function hello() { console.log("hello world"); } console.log(typeof hello); // "function"

Answer 1

Because that's what the specification says to do. Although all functions are objects, when using typeof on a function will return 'function' instead of 'object' . See the table :

Type of val                            Result:
Object (does not implement [[Call]])   "object"
Object (implements [[Call]])           "function"

(Functions have the internal method [[Call]]; non-functions do not.)