The Front-End Web Developer Bootcamp - HTML, CSS, JS, and React - Function with Return

The video tutorial covers the basics of functions in JavaScript, focusing on functions with return values. It explains how to create functions, use parameters, and return values. The tutorial provides examples of functions for addition and percentage calculations, highlighting the importance of using return statements and variable assignments. The video emphasizes the need for careful syntax, such as using concatenation for string operations and ensuring functions are called correctly to display results.

Describe the process of using document.write to print the output of a function.

How can you handle errors when a function does not return the expected value?