javascript-arrays Flashcards
1
Q
What are arrays used for?
A
Storing lists of data
2
Q
Describe array literal notation.
A
Square notations assigned to a variable as a value.
3
Q
How are arrays different from “plain” objects?
A
Arrays are numerically indexed, objects do not have a numerical index you can iterate over
4
Q
What number represents the first index of an array?
A
0
5
Q
What is the length property of an array?
A
Numeric value for the length of a given array
6
Q
How do you calculate the last index of an array?
A
Array.length – 1
