如何在bootstrap nav-tabs中使用boolean？

<ul class="nav nav-tabs">
  <li class="nav-item">
    <a class="nav-link active" data-toggle="tab" href="#tab1">Tab 1</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" data-toggle="tab" href="#tab2">Tab 2</a>
  </li>
  <li class="nav-item">
    <a class="nav-link" data-toggle="tab" href="#tab3">Tab 3</a>
  </li>
</ul>

<div class="tab-content">
  <div class="tab-pane fade show active" id="tab1">
    <h3>Tab 1 Content</h3>
    <p>This is the content for Tab 1.</p>
  </div>
  <div class="tab-pane fade" id="tab2">
    <h3>Tab 2 Content</h3>
    <p>This is the content for Tab 2.</p>
  </div>
  <div class="tab-pane fade" id="tab3">
    <h3>Tab 3 Content</h3>
    <p>This is the content for Tab 3.</p>
  </div>
</div>