Functions as Object

Function is a special type of object in JavaScript.

• The constructor of the function is an Object.

Ex 1:
function welcome() {
    console.log("Wlecome"); // Welcome
}

welcome.greeting = "Hello";

Ex 2:
const obj = {
    greet() {
        console.log("Hello");
    }
};

obj.greet(); // Hello

In the above example 1 we declared a function welcome. We can print "Welcome" by calling as welcome();. Instead we can also use call() and apply() methods to call the same function. We know that Object only has the key values. Now clearly understood that function is also an Object.

// under the hood of Ex 1
const welcome = {
    name: 'welcome',
    greeting: 'Hello',
    (): console.log("Wlecome")
}