Open Bootstrap 4 Modal via JavaScript by clicking a link

Question

I want to open a modal when I click on a link. Unfortunately I couldn't change the HTML of the link. I could only change the content of href.

Like this:

<a href="#Modal">Open modal</a>

I could not add data-attributes or any other HTML.

In the docs I found a way to open the modal via JavaScript. I added this code to my site:

$('#Modal').modal();

It works but the modal opens immediately after the page loads. I need it to open after I click on the link.

Is there a way to do this?

Here's my modal:

<div class="modal" id="Modal" tabindex="-1" role="dialog" aria-labelledby="ModalTitle" aria-hidden="true">
    <div class="modal-dialog modal-dialog-centered" role="document">
        <div class="modal-content">
            <div class="modal-header">
                <p class="h5 modal-title" id="ModalTitle">Modal Title</p>
                <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
            </div>
            <div class="modal-body">
                Content
            </div>
        </div>
    </div>
</div>

Answer 1

Trigger click event on a[href$="#Modal"].

$('a[href$="#Modal"]').on( "click", function() {
   $('#Modal').modal('show');
});

<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/>

<!-- Trigger the modal with a button -->
<a href="#Modal" class="btn btn-info btn-lg">Open modal</a>
<!-- Modal -->
<div id="Modal" 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>

EIDT: changed myModal to Modal

Answer 2

Try this

<!-- Trigger the modal with a button -->
<a href="#" class="btn btn-info btn-lg">Open Modal</a>

<!-- 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>


$('a').on( "click", function() {
   $('#myModal').modal('show');
});