javascript-arrays Flashcards
1
Q
What are arrays used for?
A
a list or a set of values that are related to each other.
2
Q
Describe array literal notation.
A
The values are assigned to the array inside a pair of square brackets, and each value is separated by a comma
3
Q
How are arrays different from “plain” objects?
A
The key for each value is its index number.
4
Q
What number represents the first index of an array?
A
0.
5
Q
What is the length property of an array?
A
It holds the number of items in the array.
6
Q
How do you calculate the last index of an array?
A
length property minus 1.
