Launching the BookLibrary app using the iOS simulator

In this section, we will compile, build, and run the BookLibrary application to see how our application looks, since we have created each of our Razor template pages, and have made some modifications to our updated style.css cascading style sheet (CSS).

Let's see how we can achieve this by going through the following steps:

1. Ensure that you have chosen the Debug | iPhoneSimulator option from the drop-down menu.
2. Next, choose your preferred device from the list of available iOS simulators.
3. Then, select the Run | Start Debugging menu option, as shown in the following screenshot:

Launching the BookLibrary app within the iOS Simulator

4. Alternatively, you can also build and run the BookLibrary application by pressing Command + Return on the keyboard.

When the compilation is complete, the iOS simulator will appear automatically...