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

Sergey Filimonov
Sergey Filimonov
5,878 Points
Posted by Sergey Filimonov
Sergey Filimonov
5,878 Points

For loop won't work

The task was: Use a for or while loop to iterate through the values in the temperatures array from the first item -- 100 -- to the last -- 10. Inside the loop, log the current array value to the console.

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>
liam johnshon
liam johnshon
Courses Plus Student 904 Points

hey Sergey ,

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

2 Answers

Tobias Helmrich
Tobias Helmrich
31,602 Points
Tobias Helmrich
Tobias Helmrich
31,602 Points

Hey Sergey,

you almost got it right. But right now you're just logging out the value of i. You have to loop through and log the value of the array temperatures at the current index with the value of i. Like so:

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 helps, if you have further questions feel free to ask! :)

Tawny Bartlett
Tawny Bartlett
24,674 Points
Tawny Bartlett
Tawny Bartlett
24,674 Points

I haven't done this one yet but I think what you're looking for is

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