JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - Exercise Solution - What Are Functions in JavaScr

The video tutorial guides learners through writing a function named 'calculator' that takes three numbers as arguments and returns their product. The instructor emphasizes the flexibility in naming parameters and demonstrates the solution step-by-step, including logging the results and verifying the output. Learners are encouraged to practice and share their progress, with reassurance that mastering functions is challenging but rewarding.

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