Bootstrap Button Loading

<div style="margin:3em;">
<button type="button" class="btn btn-primary btn-lg " id="load" data-loading-text="<i class='fa fa-circle-o-notch fa-spin'></i> Processing Order">Submit Order</button>
<br>
  <br>
<button type="button" class="btn btn-primary btn-lg" id="load" data-loading-text="<i class='fa fa-spinner fa-spin '></i> Processing Order">Submit Order</button>
</div>

$('.btn').on('click', function() {
    var $this = $(this);
  $this.button('loading');
    setTimeout(function() {
       $this.button('reset');
   }, 8000);
});