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 Iterating through an Array

Can someone help me by explaining what I missed and a bit of contextual explanation?

Had some trouble converting this into a for loop. Would like some assistance also in doing this as while loop as well.

script.js
var temperatures = [100,90,99,80,70,65,30,10];

for (var i = 100,90, 99, 80, 70, 65, 30, 10 ) {
  i = temperatures 
}
console.log(temperatures);
index.html
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript Loops</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

1 Answer

Steven Parker
Steven Parker
231,275 Points

Here's a few hints:

  • "for" loops have 3 clauses, separated by semicolons
  • the 3 clauses are initialization, condition, and increment
  • your loop can simply count from 0 up to the length of the array
  • your loop variable can be used as an array index to get a value from the array
  • the log function call should be inside the loop