JavaScript-arrays Flashcards
1
Q
What are arrays used for?
A
to make list
2
Q
Describe array literal notation.
A
where you define a new array using just empty brackets
3
Q
How are arrays different from “plain” objects?
A
all of its index are numbered
4
Q
What number represents the first index of an array?
A
0
5
Q
What is the length property of an array?
A
the number of items in a array
6
Q
How do you calculate the last index of an array?
A
subtract 1 from the length master
