JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - Example of How to Sort in JavaScript

The video tutorial explains the concept of sorting in JavaScript, demonstrating how to sort arrays of numbers and characters in both ascending and descending order. It covers the use of the sort function, including custom comparison functions for numerical sorting and default behavior for character sorting. The tutorial also highlights practical applications of sorting, such as organizing lists and data. By the end, viewers are encouraged to apply their understanding in algorithm challenges.

What is the result of sorting the array [2, 8, 1, 2, 6, 4, 10] in ascending order?

• [1, 2, 2, 4, 6, 8, 10]

• [10, 8, 6, 4, 2, 2, 1]

• [1, 10, 2, 2, 4, 6, 8]

• [2, 2, 4, 6, 8, 10, 1]

How can you sort an array in descending order using the sort function?

• By using a comparison function that adds a and b

• By using a comparison function that subtracts a from b

• By using the default sort method

• By using a comparison function that subtracts b from a

Which method can be used to reverse the order of an array?

• reverse()

• sort()

• invert()

• flip()

What is the default behavior of the sort function when applied to an array of strings?

• It leaves the strings in their original order

• It sorts the strings based on their length

• It sorts the strings in descending order

• It sorts the strings in ascending alphabetical order

Which of the following is a practical application of sorting arrays?

• To randomly shuffle elements

• To organize lists alphabetically or numerically

• To remove duplicates from an array

• To convert arrays into strings