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

Wally Mostafa
PLUS
Wally Mostafa
Courses Plus Student 982 Points
Posted by Wally Mostafa
Wally Mostafa
Courses Plus Student 982 Points

Can't seem to get it started at 100

I'm blanking here. An unfortunate side effect to being away from code for a few days. I can't seem to get it to run at 100. That's the error I keep running into. I tried the same list setup as the lesson before. No luck. Any help would be great, would even be interested in knowing if the list method is even needed here. I do think I'm overcomplicating this. Thanks in advance!

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

function runLoop( tempList) {
  var listHTML = '<ol>';
  for( var i = 0; i < temperatures.length; i += 1){
    listHTML += '<li>' + tempList[i] + '<li>';
  }
}

console.log(runLoop(temperatures));
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

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

Hey Wally,

Yeah... you are way overcomplicating this. The answer is only 2 lines of code.

You just need to really read the instructions for the challenge. Challenges are very picky and very specific. Here, it did not ask for a function, so that needs to be deleted. It didn't ask for any type of HTML insertions, so all that... deleted, and the console is supposed to log the number in the array and it has to be inside of the loop.

So, once everything is deleted, your for loop is correct. And then inside of the for loop just have the console.log() log out the numbers... using the temperatures variable with bracket notation to get the right number from the array.

Give it another go with this in mind.

Keep Coding! :) :dizzy:

Jon Wood
Jon Wood
9,884 Points
Jon Wood
Jon Wood
9,884 Points

I think your code is on the right track, but it may be just more than what the challenge is asking. I think they just wanted a for loop and to log out the value of each array item, so you don't have to create any extra HTML for it.

robertmaiolo
robertmaiolo
7,946 Points
robertmaiolo
robertmaiolo
7,946 Points

I think it just needs a return statement otherwise there's nothing for it to display or echo