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

William Coshburn
William Coshburn
6,125 Points

Why is this wrong? Newbie here

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

script.js
var temperatures = [100,90,99,80,70,65,30,10];
for (var i = 0; i<temperatures.length; i++); {
 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>

3 Answers

You were very close! Just had an extra semi-colon in your for loop

for (var i = 0; i<temperatures.length; i++) {
 console.log(temperatures[i]); }
William Coshburn
William Coshburn
6,125 Points

Thanks man...yea sneaking in some practice at work. Appreciate it

Semi-colons in JavaScript can be super tricky, especially after coming from CSS and ending every statement with a semi-colon.

There are some good resources out there for when you need them, when they're optional, and when you should not use them https://news.codecademy.com/your-guide-to-semicolons-in-javascript/

No need for a semicolon here:

i++);
William Coshburn
William Coshburn
6,125 Points

Thanks! I just need more practice. Appreciate it.