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JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops Refactor Using a Loop

Posted by William Ray Noble
William Ray Noble
22,190 Points

for (let i = 2; i <= 24; i + 2) { console.log(i); } Hello, I'm not sure what I'm doing wrong here. TIA!

I am supposed to have the JavaScript console log even numbers between 2-24.

script.js 
for (let i = 2; i = 24; i + 2) {
  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>

1 Answer

rydavim
rydavim
18,813 Points
rydavim
rydavim
18,813 Points

It looks like you have two small problems, but generally have the right idea.

for (let i = 2; i = 24; i + 2) { /* your condition and your increment expression are tripping you up */
  console.log(i);
}

The syntax for a for loop is for (initial expression; condition; increment expression).

In this case, when you're checking your condition you're immediately testing to see if i = 24. Since you just set i to be 2, this won't ever run. Try checking to see if i is less than or equal to 24.

For your increment you've got the right idea, but remember that the shorthand for incrementing by more than 1 is +=. This is indicating that you're setting your the current value of i equal to (=) itself plus (+) the increment value, in this case 2.

You can find more information on JavaScript loop syntax on the MDN page too.

Hopefully that helps get you on the right track, but let me know if you still run into problems and we can walk through a solution. Good luck, and happy coding!