Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Review Adding and Removing Items from Arrays

james chhun
james chhun
5,932 Points

var scores = [ 76, 79, 85, 87, 89 , 90, 99]; var totalScores = scores. ; .. ? what method do i use?

how do i get the number of items from a array into a new variable?

2 Answers

Kevin Gates
Kevin Gates
15,052 Points

So you're looking at the array. And you want to know how long it is. This is a property of the array. You can find the answer here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array

HIDAYATULLAH ARGHANDABI
HIDAYATULLAH ARGHANDABI
21,058 Points

The question ask you to to store the number of items in the array scores into the variable totalScores. You will use the length It should be

var totalScores = scores.length ;