Callback Abstraction

The video tutorial guides viewers through creating a reusable forecast function in JavaScript, similar to a geocode function. It covers setting up the function in a separate file, implementing conditional logic for error handling, and testing the function. The tutorial emphasizes reusability and code optimization, providing step-by-step instructions and examples to ensure understanding.

How can you test the functionality of the forecast function after implementation?

What is the significance of the callback function in the forecast request?

What should you do if the coordinates provided to the forecast function are invalid?

What changes should be made to the app.js file after creating the forecast function?