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<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="/lib/bootstrap.min.css"> <script src="/lib/jquery-1.12.2.min.js"></script> <script src="/lib/bootstrap.min.js"></script> </head> <body> <div class="container"> <h2>Modal Events - show.bs.modal</h2> <!-- Trigger the modal with a button --> <button type="button" class="btn btn-info btn-lg" id="myBtn">Open Modal</button> <!-- Modal --> <div class="modal fade" id="myModal" role="dialog"> <div class="modal-dialog"> <!-- Modal content--> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal">×</button> <h4 class="modal-title">Modal Header</h4> </div> <div class="modal-body"> <p>The <strong>show.bs.modal</strong> event occurs when the modal is about to be shown.</p> </div> <div class="modal-footer"> <button type="button" class="btn btn-default" data-dismiss="modal">Close</button> </div> </div> </div> </div> </div> <script> $(document).ready(function(){ $("#myBtn").click(function(){ $("#myModal").modal("show"); }); $("#myModal").on('show.bs.modal', function () { alert('The modal is about to be shown.'); }); }); </script> </body> </html>