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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery Change HREF Attribute of Anchor Tag Dynamically</title> <script src="https://code.jquery.com/jquery-3.5.1.min.js"></script> <script> $(document).ready(function(){ $('a[href^="http://"]').each(function(){ var oldUrl = $(this).attr("href"); // Get current url var newUrl = oldUrl.replace("http://", "https://"); // Create new url $(this).attr("href", newUrl); // Set herf value }); }); </script> </head> <body> <p><a href="http://www.google.com">Google</a></p> <p><a href="http://www.gmail.com">Gmail</a></p> </body> </html>