How to initialize Select2 for appended elements using jQuery

I am trying to append rows in a table which have some input tags and a select tag and I want to initialize select tag with jQuery Select2 library in order to do that I’ve found some code which initializes Select2 on appended select tag only when its just a select tag without any container div or td. I am a not much familiar with jQuery so please let me know how can I append the required code in:

<tbody class="items-list">    </tbody>

Here is the code which I found:

      $(function() {
        $("button").on("click", function() {

        // select the target node
        var target = document.querySelector('.items-list');

        if (target) {
          // create an observer instance
          var observer = new MutationObserver(function(mutations) {
            //loop through the detected mutations(added controls)
            mutations.forEach(function(mutation) {
            //addedNodes contains all detected new controls
              if (mutation && mutation.addedNodes) {
                mutation.addedNodes.forEach(function(elm) {
                //only apply select2 to select elements
                  if (elm && elm.nodeName === "SELECT") {

          // pass in the target node, as well as the observer options
          observer.observe(target, {
            childList: true

    // later, you can stop observing

As you can see it is only appending the select element not any tr, td or div whenever I try to add any container Select2 doesn’t work. Here is the code that I want to append:

   <td> <span id="sr_no">'.$x.'</span> </td>
        <div class="form-group">
            <select class="form-control select2" style="width: 100%;" id="product-name'.$x.'" name="product_name[]">
                 <option selected="selected" disabled>Select Product</option>';
                 foreach($rows as $row){ 
                    <option value="'.<?php echo $row["product_id"]; ?>.'">'.<?php echo $row["product_id"]; ?>.' | '.<?php echo $row["product_name"]; ?>.'</option>
                 <?php } ?>

     <td> <input type="text" name="rate[]" id="rate1"  class="form-control"> </td>
     <td> <input type="number" name="qty[]" id="qty1" min="1" class="form-control"> </td>
     <td> <input type="text" name="amount[]" id="amount1" class="form-control"> </td>
     <td> <input type="text" name="disc[]" id="disc1" value="0" class="form-control"> </td>
     <td> <input type="text" name="total[]" id="total1" class="form-control"> </td>

         <div class="btn-group btn-group-sm">
              <button type="button" onclick="removeRow('.$row["product_id"].')" class="btn btn-danger"><i class="fas fa-trash"></i></button>


Please let me know how can I do that. I’ll appreciate it :slight_smile: