JS Arrays Flashcards
1
Q
What are arrays used for?
A
storing lists of data
2
Q
Describe array literal notation.
A
variable = []
3
Q
How are arrays different from “plain” objects?
A
They are in a numbered list
4
Q
What number represents the first index of an array?
A
0
5
Q
What is the length property of an array?
A
shows how many values are in the array
6
Q
How do you calculate the last index of an array?
A
array.length -1
