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<html><head><script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script><script>$(document).ready(function(){ $("#btn1").click(function(){ $("div").data("greeting", "Hello World"); alert("Greeting is: " + $("div").data("greeting")); }); $("#btn2").click(function(){ $("div").removeData("greeting"); alert("Greeting is: " + $("div").data("greeting")); });});</script></head><body><button id="btn1">Attach data to div element</button><br><button id="btn2">Remove data attached to div element</button><div></div></body></html>