Great work on creating the add book and

add patron methods inside the library class.

In this video we're going to test out these methods.

We'll call them on our library object, and

then use Chrome's dev tools to take a look at how that library object has changed.

You'll notice I attached another work space to this video.

This new one has the completed add book and

add patron methods added to the library class.

Open up the work space and let's get started.

I'm gonna head to my index.html file.

The book, patron and library objects we created previously are still there.

We'll use these objects now.

Since we already have a book object created, we can try

adding it to the library objects book property using our new addBook method.

So let's call the method on our library object.

Don't forget we have to pass in the book object we're adding to the addBook method.

Now let's log the library object to the console to see if the book object is now

in the book's array.

Let's save and check out the console.

Perfect.

Our library object is here.

Let's click this little arrow to see what's inside.

We can see the books and patrons properties each on their own line.

And it looks like the book object was successfully added to the book's property.

Let's click this arrow to look more closely.

Yep, we can see all the correct data is here, that's great.

Let's head back to the work space and do the same with our add patron method.

I'll call the method to add patron right under the method call to add book.

Now I'll save and preview again.

Let's click into the library object.

It looks like something has populated the patrons property.

If we dial down into it,

we can see the patron object with the correct properties and values.