Javascript Arrays

Question 1

What are arrays used for?

Answer 1

Storing data (listed)

Question 2

Describe array literal notation.

Answer 2

Var = {values}

Question 3

How are arrays different from “plain” objects?

Answer 3

Arrays start at the value 0.

Question 4

What number represents the first index of an array?

Answer 4

0

Question 5

What is the length property of an array?

Answer 5

It gives you the value of the last item in the array.

Question 6

How do you calculate the last index of an array?

Answer 6

array.length - 1