bootstrap 导航栏下拉菜单不工作（angular）

Question

我已经安装了：popper.js、bootstrap 和 jquery。我的 angular json 文件是：

"styles": [
              "src/styles.css",
              "../node_modules/bootstrap/dist/css/bootstrap.min.css"
           ],
"scripts": [
              "../node_modules/jquery/dist/jquery.min.js",
              "../node_modules/popper.js/dist/umd/popper.min.js",
              "../node_modules/bootstrap/dist/js/bootstrap.min.js"
           ]

在我导入的 styles.css 文件中： @import '~bootstrap/dist/css/bootstrap.min.css';.

即使我做了这些事情，我在导航栏中的下拉菜单也不起作用：我的 html 代码是：

<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="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
    <span class="navbar-toggler-icon"></span>
  </button>

  <div class="collapse navbar-collapse" id="navbarSupportedContent">
    <ul class="navbar-nav mr-auto">
      <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="#">Link</a>
      </li>
      <li class="nav-item dropdown">
        <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
          Dropdown
        </a>
        <div class="dropdown-menu" aria-labelledby="navbarDropdown">
          <a class="dropdown-item" href="#">Action</a>
          <a class="dropdown-item" href="#">Another action</a>
          <div class="dropdown-divider"></div>
          <a class="dropdown-item" href="#">Something else here</a>
        </div>
      </li>
      <li class="nav-item">
        <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
      </li>
    </ul>
    <form class="form-inline my-2 my-lg-0">
      <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
      <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
    </form>
  </div>
</nav>

我的代码来自：https://getbootstrap.com/docs/4.0/components/navbar/

提前致谢！

Answer 1

我认为您正在设置访问样式和脚本的路径。

节点模块在你的主项目文件夹中；因此只跳过一个文件夹，你是 skipping/jumping 两个文件夹(../)

    "styles": [
       "src/styles.css",
       "./node_modules/bootstrap/dist/css/bootstrap.min.css"
     ],
    "scripts": [
       "./node_modules/jquery/dist/jquery.min.js",
       "./node_modules/popper.js/dist/umd/popper.min.js",
       "./node_modules/bootstrap/dist/js/bootstrap.min.js"
     ]

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