Callback Chaining

The video tutorial covers the callback chaining pattern in Node.js, focusing on asynchronous operations. It explains how to chain callbacks to perform tasks in a specific order, such as geocoding an address and using the coordinates for a weather forecast. The tutorial also addresses error handling in callbacks and demonstrates how to use command line arguments to make the application more dynamic. Finally, it includes testing and finalizing the application to ensure it functions correctly.

Explain the problem with having two asynchronous IO operations that operate independently.

What is the callback chaining pattern in asynchronous programming?

How does the event loop ensure that callbacks are executed in the correct order?

What changes need to be made to use the latitude and longitude properties in the forecast function?

Describe how to handle errors that may occur during the geocode operation.

What is the significance of using unique names for variables in nested callbacks?

What is the expected output when a valid location is provided to the application?

How can a user provide a location without modifying the source code?

Explain the process of accessing command line arguments in a Node.js application.

What should be done if no command line argument is provided for the location?