JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - Final Exercise - Facebook Unfriend Functionality

This video tutorial guides viewers through a JavaScript exercise focused on creating a function to unfriend users on a simulated Facebook platform. It begins with an introduction to the exercise, followed by a demonstration of the unfriending process on Facebook. The tutorial then details the structure of a Facebook user object, explaining its components like name, age, and friends list. Viewers are instructed on writing a function to dynamically remove a friend from the list, with emphasis on handling errors if the friend does not exist. The video concludes with a review of the exercise, reinforcing the concepts of objects and arrays in JavaScript.

What is the main functionality that the exercise aims to build related to Facebook?

Describe the structure of the Facebook user object mentioned in the exercise.

What should the function 'unfriend' do when a friend does not exist in the user's friend list?

Explain the importance of error handling in the 'unfriend' function.

What is the expected output of the 'unfriend' function after successfully removing a friend?