how to check if an object is a function javascript code example

Example 1: javascript check if variable is object

let myObject = {
	firstname: 'harry',
  	lastname: 'potter'
}
//check the typeof if, boolean, object, string etc...
console.log(typeof myObject);
if(typeof myObject === 'object') {
	console.log('this is object');
}

Example 2: check if function javascript

variableToCheck instanceof Function

Example 3: javascript check if variable is object

//checks if is object, null val returns false
function isObject(val) {
    if (val === null) { return false;}
    return ( (typeof val === 'function') || (typeof val === 'object') );
}
var person = {"name":"Boby Snark"};
isObject(person);//true