Question

<nav class="navbar navbar-expand-lg navbar-light bg-light">
  <a class="navbar-brand" href="#">Navbar</a>
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>
  <div class="collapse navbar-collapse" id="navbarNavDropdown">
    <ul class="navbar-nav">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Features</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Pricing</a>
      </li>
      <li class="nav-item dropdown">
        <a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
          Dropdown link
        </a>
        <div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
          <a class="dropdown-item" href="#">Action</a>
          <a class="dropdown-item" href="#">Another action</a>
          <a class="dropdown-item" href="#">Something else here</a>
        </div>
      </li>
    </ul>
  </div>
</nav>

这是导航栏中带有引导程序下拉菜单的代码。但是问题在于，当切换到导航栏下拉图标时，下拉菜单不起作用

代码链接：https://getbootstrap.com/docs/4.0/components/navbar/ 任何建议，为什么它不起作用作出反应？

Answer 1

您需要将reactstrap npm软件包与bootstrap一起使用。在这里看看：https://reactstrap.github.io/

Answer 2

您应该使用react-bootstrap。它可以与react一起正常工作，并且是专门为react而设计的。 https://react-bootstrap.github.io/components/navbar/#navbars-overview

引导导航栏下拉列表

2 个答案: