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

Posted by ammarkhan
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ammarkhan
Front End Web Development Techdegree Student 21,661 Points

console.log_args[i] error

With the following code, i am getting a error, however from what i remember, this is the way to use for loop with array.

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

Cheo R
Cheo R
37,150 Points
Cheo R
Cheo R
37,150 Points

Hello Ammar, you're on the right track. Your mix up on the line

for(var i=100; i < temperatures.length; i+=10){

remember to start your index at 0.

Instead of increasing the index variable by 1, you are increasing it by 10! Which you don't want to do because doing so can lead to out-of-bounds error because there is no element at the next index (in this case it would be 101).

So all you have to do is it change it to i += 1 and var i = 0.

ammarkhan
.a{fill-rule:evenodd;}techdegree
ammarkhan
Front End Web Development Techdegree Student 21,661 Points

Cheo R But it says javascript[100,90,80,70,60,50,40,30,20,10] which means increment of 10?