JavaScript/REGEX: Close all BR Tags

Using JavaScript and REGEX, how can I close all BR tags?

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Demo</title>

<script type="text/javascript">
var str = '<br>This is a test <br > and ONLY a test<br class="xyz">.  All BR tags <br /> should be proporly closed. ';

alert( closeBR(str) );

function closeBR(str) {
return str;
}

</script>
</head>
<body>
</body>
</html>

Open in new window

LVL 16
hankknightAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

käµfm³d 👽Commented:
Try:

function closeBR(str) {
    return str.replace(/<br *>/g, '<br />');
}

Open in new window

0
David S.Commented:
Here's one way to do it (which will work in very old browsers):
function closeBR(str) {
  return str.replace(/(<br[^>]*)>/gi,'$1 />').replace(/[\s\/]+ \/>/g,' />');
}

Open in new window

Here's another which uses a single expression and works in browsers in use today:
function closeBR(str) {
  return str.replace(/(<br[^>]*?)\s*\/?>/gi,'$1 />');
}

Open in new window

@kaufmed  Your code doesn't take into account the case when the element has an attribute.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
käµfm³d 👽Commented:
No it does not, but I can't recall the last time I've seen a line break which had attributes (though I acknowledge it can take them).
0
David S.Commented:
I pointed it out because Hank included one such instance in his example. Also he (or someone else who reads this) might want to use the same expression/function to do the same thing for other empty elements, e.g. <img> elements.

Once in a while I see a newbie that gives an attribute to <br> elements.
0
käµfm³d 👽Commented:
So he did. I simply overlooked it. Good eye  = D
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
JavaScript

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.