AWS, JavaScript, React - Deploy Web Apps on the Cloud - JavaScript Changing and Deleting Elements

The video tutorial explains how to modify and delete elements in an array using index numbers. It demonstrates changing the first element of an array from 'apple' to 'Kiwi' and altering another element by changing its index. Additionally, it covers how to delete an element, leaving an empty space in the array.

What is the new value of the first element in the array after modification?

• Kiwi

• Grape

• Banana

• Orange

Which index number should be used to change 'Grape' to 'Kiwi'?

• 2

• 3

• 0

• 1

What is the result of saving and refreshing the file after changing an element?

• The browser displays the updated array

• The array remains unchanged

• The array is reset to default values

• An error message appears

What happens to the array when an element is deleted using its index?

• The element is replaced with 'null'

• The element is replaced with 'undefined'

• The element is replaced with '0'

• The element is removed and leaves an empty space

Which element is removed from the array when using index #2?

• Grape

• Pair

• Banana

• Apple