Storing Users: Part II

The video tutorial guides viewers through the process of adding two new functions, getUser and getUsersInRoom, to a JavaScript file. It explains how to implement these functions using array methods like find and filter. The tutorial also covers testing these functions with sample data and finalizing the code by exporting the functions for further use. The video emphasizes the importance of these functions in managing user data effectively.

What is the primary purpose of the 'getUser' function?

• To list all users in a room

• To remove a user from the system

• To find a user by their ID

• To add a new user to the system

Which method is used in the 'getUser' function to find a user?

• Array.map

• Array.filter

• Array.reduce

• Array.find

What does the 'getUser' function return if no user is found?

• An error message

• Undefined

• Null

• An empty array

What is the purpose of the 'getUsersInRoom' function?

• To list users in a specified room

• To remove users from a room

• To find a user by ID

• To add users to a room

Which method is used in the 'getUsersInRoom' function to filter users?

• Array.find

• Array.map

• Array.filter

• Array.reduce

What will 'getUsersInRoom' return if no users are in the specified room?

• An error message

• Undefined

• Null

• An empty array

What is the next step after exporting the functions?

• Testing the functions again

• Integrating them into a larger application

• Deleting the functions

• Rewriting the functions