Once you have the complete code saved to app.js, it's time to execute it and see what happens. However, before you can launch an app that clearly relies on a connection to MongoDB, you need to first boot up the MongoDB daemon instance:
$ mongod
In Windows, if you haven't set a PATH variable for mongod, you may need to use the full path while executing MongoDB, which is c:MongoDBinmongod.exe. For your needs, the remainder of this book will refer to the mongod command, but you may always need to execute the full path in each instance.
Now, to launch the app itself, execute the following command after moving to the root folder where app.js is located:
$ node app.js
When the app first executes, you should see the following:
Connected correctly to server
Success :2 chapters inserted!