javascript - Pass data-attr in Materialize's modal (leanModal) -

i using materialize framework in rails app. have element launch modal on click:

<div data-target="modal1" class="modal-trigger" data-code="<%=code%>">lalala</div>

i want catch data-code in js , save variable. i've done following official documentation:

$('.modal-trigger').leanmodal({   ready: function() {    var = $(this).attr("data-code");   }, }

the variable "a" undefined. how can pass data-attr in materialize modal? best way? thanks.

update: i'd display value of data-code in modal. code:

  <div id="modal1" class="modal bottom-sheet">     <div class="modal-content">       <p>the code</p>     </div>   </div>

update1: solved clickon method , append data attr particular div wondering if possible pass through modal.

M16