Arrays Flashcards
1
Q
What are arrays used for?
A
Store ordered list of values for data.
2
Q
Describe array literal notation.
A
variable keyword variable name = [elements separated by comma].
3
Q
How are arrays different from “plain” objects?
A
They are ordered and numerically indexed.
4
Q
What number represents the first index of an array?
A
0
5
Q
What is the length property of an array?
A
represents the number of elements in that array.
6
Q
How do you calculate the last index of an array?
A
Subtract 1 from arrays length.
