JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/selectize.js/0.13.3/js/standalone/selectize.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
<h2>
  l table
</h2>
<table>
  <tr>
    <td class="h-sample">
      <div class="flex-nowrap input-group">
        <lable> bulk</lable>
        <select class="selectize-project" onchange="async_bulk_edit_dropdown_multi('project-dropdown', this)">
          <!-- some example options -->
          <option value="value1">value1</option>
          <option value="value2">value2</option>
          <option value="value3">value3</option>
        </select>
      </div>
    </td>
  </tr>
  <tr>
    <td class="align-middle">
      <select class="selectize-project project-dropdown">
        <!-- some example options -->
        <option value="value1">value1</option>
        <option value="value2">value2</option>
        <option value="value3">value3</option>
      </select>
    </td>
  </tr>
  <tr>
    <td class="align-middle">
      <select class="selectize-project project-dropdown">
        <!-- some example options -->
        <option value="value1">value1</option>
        <option value="value2">value2</option>
        <option value="value3">value3</option>
      </select>
    </td>
  </tr>
  <tr>
    <td class="align-middle">
      <select class="selectize-project project-dropdown">
        <!-- some example options -->
        <option value="value1">value1</option>
        <option value="value2">value2</option>
        <option value="value3">value3</option>
      </select>
    </td>
  </tr>
  <tr>
    <td class="align-middle">
      <select class="selectize-project project-dropdown">
        <!-- some example options -->
        <option value="value1">value1</option>
        <option value="value2">value2</option>
        <option value="value3">value3</option>
      </select>
    </td>
  </tr>
  <tr>
    <td class="align-middle">
      <select...

JavaScript

function initSelectizeProject() {
    let dropdowns = document.querySelectorAll('select.selectize-project');
    for (let dropdown of dropdowns) {
            $(dropdown).selectize({
                create: false,
                persist: false,
                closeAfterSelect: true,
            });
        
    }
}
async function async_bulk_edit_dropdown_multi(selector, origin) {
    let dropdowns = origin.closest('table').querySelectorAll(`select.${selector}`);
    for (let dropdown of dropdowns) {
        let dropdownSelectize = dropdown.selectize;
        dropdownSelectize.clear(origin.options.length > 0);
        for (let i = 0; i < origin.options.length; i++) {
        		console.time();
            dropdownSelectize.addItem(origin.options[i].value, i < origin.options.length - 1);
            console.timeEnd();
        }
    }
}

initSelectizeProject();