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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Data Example</title> <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script> </head> <body> <div id="user">User Div</div> <button id="btn">Set Data</button> <script> $("#btn").click(function(){ $("#user").data("id", 42); alert("User ID = " + $("#user").data("id")); }); </script> </body> </html>
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