The video tutorial introduces Immediately Invoked Function Expressions (IIFE) in JavaScript, explaining their syntax and usage. It highlights the benefits of using IIFE, such as avoiding global scope pollution and managing variable conflicts. The tutorial also covers how to pass parameters to IIFE and the concept of named IIFE, while cautioning against recursion due to potential infinite loops. The video concludes with a brief mention of upcoming function challenges.

How can you pass parameters to an IIFE?

Why might you want to create a named IIFE, and what are its limitations?

What is recursion in the context of functions, and how does it relate to IIFEs?