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<!doctype html> <html lang="en"> <head> <title>jQuery addClass() Method Replace Class for the Selected Element</title> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script> <script> $(document).ready(function(){ $('.replaceclassbtn').click(function(){ $("p").removeClass("myoldpara").addClass("mynewpara"); }); }); </script> <style> .myoldpara{ background:green; padding:10px; border:1px solid #ccc; color:#fff; } .mynewpara{ background:pink; padding:15px; border:1px solid #ccc; color:red; } </style> </head> <body> <h2>jQuery addClass() Method Replace Class for the Selected Element</h2> <button type="button" class="replaceclassbtn">Click to Replace Class</button><br><br> <p class="myoldpara">This is my paragraph</p> </body> </html>
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