AWS, JavaScript, React - Deploy Web Apps on the Cloud - JavaScript Joining Arrays

The video tutorial explains how to work with two arrays named 'girls' and 'boys'. The 'girls' array contains four elements, while the 'boys' array contains five. A third variable is used to combine these arrays using the concat method. The combined array is then outputted using the getElementById method. Finally, the video demonstrates how to preview the output in a web browser.

How many elements are there in the 'girls' array?

• Five

• Six

• Four

• Three

Which method is used to combine the elements of the two arrays?

• merge

• append

• concat

• join

What is the purpose of the third variable in the script?

• To store the last element of each array

• To store the first element of each array

• To store the combined elements of both arrays

• To store the length of the arrays

Which method is used to display the combined array elements in the browser?

• getElementsByTagName

• getElementsByClassName

• getElementById

• querySelector

What is the result when the script is previewed in the web browser?

• Only the 'girls' array is displayed

• The combined elements of both arrays are displayed

• Only the 'boys' array is displayed

• Both arrays are displayed separately