JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - Introduction to the For Loop - II

The video tutorial explains how to use loops in JavaScript, focusing on iteration, the incremental operator, and accessing array elements. It covers the logic within loops, how to execute them, and the importance of loop conditions. The tutorial also highlights common pitfalls, such as accessing undefined elements, and provides a practical example of listing user names from an array.

What is the purpose of the variable 'I' in the loop?

Explain how the loop iterates through the array of users.

What is the output when the loop runs successfully through the users array?

What happens when 'I' reaches the length of the users array?

Describe the significance of using 'less than' versus 'less than or equal to' in the loop condition.

Why do we see 'undefined' when 'I' is set to be less than or equal to the length of the users array?

How can you modify the loop to start counting from 1 instead of 0?