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JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Iterating through an Array

Tiffany White
Tiffany White
5,373 Points
Posted by Tiffany White
Tiffany White
5,373 Points

I run the typical for loop but my what is logged is backwards, from 10-100 instead of the other way around.

I am not sure what is happening here-- typical for loop. I just don't understand how to log it from 100-10. Help?

script.js 
var temperatures = [100,90,99,80,70,65,30,10];
for ( var i = 0; i < temperatures.length; i += 1 ) {
  console.log([i]);
}
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

Jason Anders
MOD
Jason Anders
Treehouse Moderator 145,860 Points
Jason Anders
Jason Anders
Treehouse Moderator 145,860 Points

Hi Tiffany,

The way you have your code console.log([i]), you are just logging out the variable i which you have set to zero and incrementing by one in each loop. In this, you are logging out "0, 1, 2, etc".

What you need to do is to log out the item at each array index number in the variable temperatures. So, you are very close, you're just missing the variable name to log out the indexes.

var temperatures = [100,90,99,80,70,65,30,10];
for ( var i = 0; i < temperatures.length; i += 1 ) {
  console.log(temperatures[i]);             
}

I hope that makes sense. Keep coding! :)