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

Posted by Wilfredo Casas
Wilfredo Casas
6,174 Points

Why is my for loop not working?

Not sure why it isn't working

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

for (i=0; i <11; 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>

3 Answers

Jennifer Nordell
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STAFF
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Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there! I'm going to give some hints here. Hopefully, you can get the answer from these as I think it will be a better learning experience overall.

  • Your code is currently logging out the numbers 0 to 10.
  • Your code should be logging out the element in that position of the array where i is less than the length of the array
  • You will need to access the array set up by the challenge like so temperatures[i]

Good luck, but let me know if you're still stuck! :sparkles:

Wilfredo Casas
Wilfredo Casas
6,174 Points

Hey Jennifer, your profile is impressive. May I ask how many hours a day do you come into Treehouse?

Jennifer Nordell
seal-mask
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Wilfredo Casas I used to come here no less than 8 hours a day. It's been less recently and some days not at all. I'm currently working on some projects :smiley:

Wilfredo Casas
Wilfredo Casas
6,174 Points

I take my hat off to you madam.

Craig Garner
Craig Garner
25,732 Points
Craig Garner
Craig Garner
25,732 Points

Add a counter variable to do your counting. x = count.length

It won't break when you add more or less

Luiz Felipe Soares
Luiz Felipe Soares
13,840 Points
Luiz Felipe Soares
Luiz Felipe Soares
13,840 Points

Just to be safe in the future, you can try to set i < temperature.length , so you work with variables and minimise human error.

Always remember that "i" make reference to the index of your array in your case.

cheers