JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - Solution - Modify Arrays and Remove Items in Java

This video tutorial guides students through implementing a function called 'ebooks' that manipulates an array of book titles. The lesson covers writing the function, logging outputs, debugging common issues, and adhering to naming conventions. It also demonstrates using array methods like pop and shift to achieve the desired output. The tutorial concludes with a successful solution and encourages students to apply these concepts in future exercises.

What is the primary task of the 'ebooks' function introduced in the video?

• To sort an array of book titles

• To calculate the length of an array

• To log an array of book titles to the console

• To convert an array to a string

Why is camelCase important when naming functions in JavaScript?

• It helps in sorting functions alphabetically

• It allows functions to run faster

• It is a requirement by the JavaScript compiler

• It improves readability and follows convention

What mistake was made when initially logging the array of book titles?

• The book titles were not in alphabetical order

• The book titles were passed as a single string instead of an array

• The book titles were not capitalized

• The book titles were missing punctuation

What methods are used to remove elements from the array in the 'ebooks' function?

• pop and shift

• map and filter

• splice and slice

• push and unshift

What is the purpose of storing removed elements in variables when using pop and shift?

• To sort the elements later

• To convert them into a different data type

• To keep a record of removed elements

• To calculate the total number of elements removed

What is the final output of the 'ebooks' function after using pop and shift?

• An array with all original book titles

• An empty array

• An array with 'Lord of the Rings' and 'JavaScript, the good parts'

• An array with 'Infinite Jest' only

What is the significance of the 'pop' and 'shift' methods in array manipulation?

• They add elements to the end and start of an array

• They remove elements from the end and start of an array

• They sort elements in ascending and descending order

• They convert arrays into strings