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JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops For Loops

Sean Flanagan
Sean Flanagan
33,235 Points
Posted by Sean Flanagan
Sean Flanagan
33,235 Points

Why does nothing happen?

Hi.

When I run this code, no divs appear.

HTML:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Circles</title>
  <link rel="stylesheet" href="css/styles.css">
</head>
<body id="color">
<script src="js/script.js"></script>
</body>
</html>

JavaScript:

var html='';
for (var = 1; i <= 10; i += 1) {
  html += '<div>' + i + '</div>';
}
document.write(html);

Does anyone know please why there are no divs and what I should do?

Thanks

Sean :-)

1 Answer

Matt F.
Matt F.
9,518 Points
Matt F.
Matt F.
9,518 Points

Hello, all you need to do is put i after the variable declaration on line 2. Right now your loop does not 'see' a declaration for the variable i.

Change the second line of your JavaScript to 

for (var i = 1; i <= 10; i += 1) {

Hope this helps.

Sean Flanagan
Sean Flanagan
33,235 Points
Sean Flanagan
Sean Flanagan
33,235 Points

Hi Matt.

Thanks for this. I did as you advised and it worked a treat. You've been upvoted and nominated Best Answer.

Cheers!

Sean :-)