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<!DOCTYPE html> <html> <head> <title>Title of the document</title> <script src="https://code.jquery.com/jquery-3.5.0.min.js"></script> </head> <body> <p><input type="checkbox" id="checkId"> Are you sure?</p> <button type="button" class="check">Yes</button> <button type="button" class="uncheck">No</button> <script> $(document).ready(function() { $(".check").click(function() { $("#checkId").attr("checked", true); }); $(".uncheck").click(function() { $("#checkId").attr("checked", false); }); }); </script> </body> </html>