We can store a function as
a property of an object.
Such properties are called
methods.
In the example given above,
we have defined an object admin.
Then a function is assigned
to the property displayGreeting
of the admin object.
displayGreeting is now a method of the admin object.
We can also assign a pre-defined function to an object property.
In the example given above,
we first defined the displayHelloWorld function.
Then we assigned it to the displayGreeting property of admin.
This way of defining an object method is not preferred.
We'll take a look at the preferred way of
defining object methods in the next chapter.