The Modern JavaScript Bootcamp (2019) - Callback Abstraction Challenge

The video tutorial explains how to use callbacks and asynchronous execution to create a function that retrieves country details based on a country code. It outlines the steps to abstract HTTP request logic into a separate function, similar to the getPuzzle function. The tutorial also covers modifying getPuzzle to accept additional arguments and demonstrates implementing and testing the getCountry function, focusing on error handling and using callback functions effectively.

What new insight or understanding did you gain from this video?