Find replace html using javascript
Question
I've read a bunch of different posts and I can't figure out why this isn't working for me. Any help would be greatly appreciated. I'm sure it's something simple.
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>Untitled Document</title>
<script type="text/javascript">
$("body").children().each(function() {
$(this).html($(this).html().replace(/®/g,"<sup>®</sup>"));
});
</script>
</head>
<body>
<div>HelloWorld®</div>
</body>
</html>
3 answers
solution1
0 ACCPTED 2016-10-21 15:55:29
you must wait after page ready so add your function inside $(document).ready(function(){....}) or move your <script>...</script> tag as last element inside <body>...</body>
<!doctype html> <html> <head> <meta charset="UTF-8"> <title>Untitled Document</title> <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> </head> <body> <div>HelloWorld®</div> <script type="text/javascript"> $("body").children().each(function() { $(this).html($(this).html().replace(/®/g,"<sup>®</sup>")); }); </script> </body> </html>
<!doctype html> <html> <head> <meta charset="UTF-8"> <title>Untitled Document</title> <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <script type="text/javascript"> $(document).ready(function(){ $("body").children().each(function() { $(this).html($(this).html().replace(/®/g,"<sup>®</sup>")); }); }); </script> </head> <body> <div>HelloWorld®</div> </body> </html>
solution2
0 2016-10-21 16:02:21
I have tested your code and it works for me. I output to the console the contents of the element before and after modifying them:
$("body").children().each(function() {
console.log($(this).html());
$(this).html($(this).html().replace(/®/g,"<sup>®</sup>"));
console.log($(this).html());
});
And the result is:
HelloWorld®
HelloWorld<sup>®</sup>
Check it here:
https://jsfiddle.net/m6kLgpj7/
Are you getting a different result? What is the problem you are observing?
solution3
0 2016-10-21 16:05:59
To be honest I would probably just target the element by giving it a unique ID rather than iterate over every element in the body. However since that is the approach you asked about, this is how I would do it:
$(document).ready(function() { $("body").children().each(function(idx, elem) { var newHtml = $(elem).html().replace(/®/g, "<sup>®</sup>"); $(elem).html(newHtml); }); });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <title>Untitled Document</title> <body> <div>HelloWorld®</div> </body>
Also, take note of the document ready method i placed the rest of the script in to ensure. This ensures the script does not manipulate the DOM until the DOM is ready.
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