Understanding how data-dismiss attribute works in Bootstrap

Question

I'm new to Bootstrap and i'm facing problem with this example:

<!-- Trigger the modal with a button --> <button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Open Modal</button>  <!-- Modal --> <div id="myModal" class="modal fade" role="dialog">   <div class="modal-dialog">      <!-- Modal content-->     <div class="modal-content">       <div class="modal-header">         <button type="button" class="close" data-dismiss="modal">&times;</button>         <h4 class="modal-title">Modal Header</h4>       </div>       <div class="modal-body">         <p>Some text in the modal.</p>       </div>       <div class="modal-footer">         <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>       </div>     </div>    </div> </div> 

As per my understanding data-dismiss="modal" attribute should close the modal if you click on it, but i don't understand how it works behind the scene. I checked the official documentation at: http://getbootstrap.com/javascript/#modals-examples but there's no explaination.

Answer 1

The hiding functionality is implemented in the modal.js in this way.

this.$element.on('click.dismiss.bs.modal', '[data-dismiss="modal"]', $.proxy(this.hide, this)) 

Basically it's just finding the elements that have the attribute of data-dismiss and the value of modal. Upon click it will hide these elements.