The Front-End Web Developer Bootcamp - HTML, CSS, JS, and React - Arrays

The video tutorial introduces arrays as a data type in JavaScript, explaining their purpose and how to create and use them. It covers accessing array elements using index positions and demonstrates using loops to iterate over arrays. The tutorial also shows how to display arrays using HTML tags, highlighting the differences in array representation between JavaScript and other languages.

What is the primary purpose of using arrays in programming?

• To store a single value in a variable

• To store multiple values in a single variable

• To perform arithmetic operations

• To create complex data structures

In JavaScript, what data type is an array shown as?

• Number

• Boolean

• String

• Object

How do you access the first element of an array in JavaScript?

• Using index 1

• Using index 10

• Using index 0

• Using index -1

What is the index of the value 70 in the array [10, 20, 30, 40, 50, 60, 70]?

• 5

• 6

• 7

• 8

Which loop is recommended for iterating over arrays due to its simplicity in initialization and condition setting?

• While loop

• Do-while loop

• Foreach loop

• For loop

How can you display array elements in a list format using HTML?

• Using

  tags

• Using tags

• Using

  tags

  Using

  and
  • tags

What happens when you use events and call HTML tags with arrays?

• The array elements are sorted

• The array elements are hidden

• The array elements are automatically displayed

• The array elements are deleted