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Editorial Team
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Asked: 2026-05-27T04:15:28+00:00

see – > i have the following text in a variable var s =

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see – > i have the following text in a variable

var s = 

    "<html>
  <head>
    <style type="text/css" >     
      body{
 background:url(/a.png);
          }
    </style>
    <script src="2.js"></script>
    <script src="1.js"></script>
  </head>
  <body >
   {BODYCONTENT}
  </body>


</html>";

Now i want to append some data immediately after closing of <style> tag’s > .

Ex : 

var mydata = "/n h1{a:b}/n";

So i want 

<style>/n h1{a:b}/n

it is very easy if there is no other attribute in style tag,but sometime there may be some other attributes like type ,id

ex : 

<style type="text/css" id="default_css_scope">
content
</style>

so that i cant use like this s.replace("<style>","<style>".mydata);

How can i do this with Regular Expression ?

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1 Answer

  1. Editorial Team

    Caveat: I do not recommend using regular expressions to work extensively with HTML.

    But you might get away with it in this specific case:

    str = str.replace(/<style[^>]*>/, function(m) {
    return m + mydata;
});

    Live example

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