Get value from data-attribute (HTML 5) into Jquery then passing to img src

I know how to get values from html-* attribute via Jquery and pass them using #id.

HTML:

<a class="btn btn-primary btn-sm" data-target="#viewModal" title="view" data-toggle="modal" data-title=""> View </a>

JQuery Function:

<script>
        $(function() {
            $('#viewModal').on("show.bs.modal", function (e) {
                $("#title").val($(e.relatedTarget).data('title'));
                $("#pic").val($(e.relatedTarget).data('pic'));
            });
        });
    </script>

How can I pass picture(value) from Jquery to img src (in laravel). Image source:

img src=""

After placing img value in src, src should be passed to img tag(Laravel Framework).

via Chebli Mohamed