JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - Solution - Search for Game Items and Clone Array

The video tutorial guides viewers through creating a function called 'search and clone' that takes an array and an element as arguments. It demonstrates setting up the function, implementing conditional logic to check for the presence of 'magic arrows', and using a while loop to duplicate array elements. The tutorial also covers testing the function with dynamic inputs and handling errors, ensuring the function works as intended.

What is the primary purpose of the 'search and clone' function introduced in the video?

• To reverse the order of an array

• To find and duplicate elements in an array

• To sort an array of numbers

• To calculate the sum of array elements

Which method is used to check if 'magic arrows' exist in the array?

• filter()

• indexOf()

• includes()

• find()

What is the role of the 'indexOf' method in the function?

• To remove elements from the array

• To sort the array in ascending order

• To search for the position of an element in the array

• To add elements to the array

How does the function ensure that two copies of the array are pushed into the new array?

• By using a while loop with a counter

• By using a for loop

• By using a recursive function

• By using a map function

What is the purpose of decrementing the 'NUM' variable in the loop?

• To increase the size of the array

• To prevent an infinite loop

• To add more elements to the array

• To sort the array

What should the function return after processing the array?

• The number of elements in the array

• The new array with duplicates

• A boolean indicating success

• The original array

How can the function be made more dynamic according to the video?

• By removing the return statement

• By using a fixed array size

• By allowing the element to be passed as an argument

• By hardcoding the element to search for