JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - Solution - Update New User Database with Splice

The video tutorial guides learners through a coding exercise involving the declaration and manipulation of a function called 'update usernames'. It begins with motivational remarks, followed by a step-by-step explanation of declaring the function, populating an array, and updating usernames using array methods. Debugging and corrections are demonstrated, emphasizing the importance of understanding the process. The tutorial concludes with encouragement and recognition of learners' progress.

What is the primary goal of the exercise discussed in the video?

• To practice writing loops

• To understand console logging

• To update usernames in an array

• To learn how to declare a function

Which argument type does the function update usernames take?

• An array

• An object

• A string

• A number

What mistake was made in the initial setup of the exercise solution?

• The console log argument was incorrect

• The function name was misspelled

• The array was not populated

• The function was not declared

How is the username 'Susie' updated in the array?

• By using the splice method

• By using the pop method

• By using a loop

• By using the push method

What is the final outcome after updating the username in the array?

• The array remains unchanged

• The username 'Susie' is replaced with 'Bob'

• A new username is added to the end of the array

• The array is cleared