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

Andrew Warrington
Andrew Warrington
7,167 Points

I do not understand why this code came back as syntax error. Can anyone see where I went wrong?

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

for (i = 0; i < temperatures.length; i ++ 1;){ console.log(temperatures);

}

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

for (i = 0; i < temperatures.length; i ++ 1;){
  console.log(temperatures);

}
index.html
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript Loops</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

2 Answers

Gotta fix two things in your loop to get it correct. First, your increment is off. It should just be i++ which means increment i by 1 every loop iteration. Secondly, you need to access each index of the array when you log it.

For Loop:

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

for (var i = 0; i < temperatures.length; i++) {
  console.log(temperatures[i]);
}

While Loop:

var temperatures = [100,90,99,80,70,65,30,10];
var i = 0;

while (i < temperatures.length) {
  console.log(temperatures[i]);
  i++;
}
Michael Liendo
Michael Liendo
15,326 Points

It's in your for-loop. It should be either i++ or i = i +1