Bootstrap 4.1.1 Navbar不使用Angular 6

Question

我一直在尝试使用Bootstrap 4.1.1和Angular 6在带有折叠菜单和下拉链接的Navbar上工作,但不知何故Navbar根本不工作.我可以正确地看到元素,但它们不能按预期运行.

我使用'ng install bootstrap --save'和Bootstrap依赖项通过Angular CLI安装了Bootstrap:'ng install jquery --save'和'ng install popper.js --save'

我还在package.json和angular.json中包含了Bootstrap,jquery和popper.js

的package.json:

"dependencies": {
  "@angular/animations": "^6.0.0",
  "@angular/common": "^6.0.0",
  "@angular/compiler": "^6.0.0",
  "@angular/core": "^6.0.0",
  "@angular/forms": "^6.0.0",
  "@angular/http": "^6.0.0",
  "@angular/platform-browser": "^6.0.0",
  "@angular/platform-browser-dynamic": "^6.0.0",
  "@angular/router": "^6.0.0",
  "bootstrap": "^4.1.1",
  "core-js": "^2.5.4",
  "jquery": "^3.3.1",
  "popper.js": "^1.14.3",
  "rxjs": "^6.0.0",
  "zone.js": "^0.8.26"
},
"devDependencies": {
  "@angular-devkit/build-angular": "~0.6.0",
  "@angular/cli": "~6.0.0",
  "@angular/compiler-cli": "^6.0.0",
  "@angular/language-service": "^6.0.0",
  "@types/jasmine": "~2.8.6",
  "@types/jasminewd2": "~2.0.3",
  "@types/jquery": "^3.3.2",
  "@types/node": "~8.9.4",
  "codelyzer": "~4.2.1",
  "jasmine-core": "~2.99.1",
  "jasmine-spec-reporter": "~4.2.1",
  "karma": "~1.7.1",
  "karma-chrome-launcher": "~2.2.0",
  "karma-coverage-istanbul-reporter": "~1.4.2",
  "karma-jasmine": "~1.1.1",
  "karma-jasmine-html-reporter": "^0.2.2",
  "protractor": "~5.3.0",
  "ts-node": "~5.0.1",
  "tslint": "~5.9.1",
  "typescript": "~2.7.2"
}

angular.json:

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

HTML:

<nav class="navbar navbar-expand-md navbar-light bg-light">
    <a href="#" class="navbar-brand">RecipeBook</a>
    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#collapsing-nav-bar" aria-controls="collapsing-nav-bar"
        aria-expanded="false" aria-label="Toggle navigation">
        <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse" id="collapsing-nav-bar">
        <ul class="navbar-nav mr-auto">
            <li class="nav-item">
                <a href="#" class="nav-link">Recipes</a>
            </li>
            <li class="nav-item">
                <a href="#" class="nav-link">Shopping list</a>
            </li>
        </ul>
        <ul class="navbar-nav">
            <li class="nav-item dropdown">
                <a href="#" class="nav-link dropdown-toggle" id="dropdownMenu" data-toggle="dropdown" 
                aria-haspopup="true" aria-expanded="false">
                    Manage
                </a>
                <div class="dropdown-menu" aria-labelledby="dropdownMenu">
                    <a href="#" class="dropdown-item">Save</a>
                    <a href="#" class="dropdown-item">Fetch</a>
                </div>
            </li>
        </ul>
    </div>
</nav>

我更喜欢使用Bootstrap本机库,而不是使用ng-bootstrap,也不喜欢在head-tag中包含CDN.

我在这里做错了吗？任何关于如何解决这个问题的建议将不胜感激.

Answer 1

只需在脚本中添加umd目录 popper 即可。

 "./node_modules/popper.js/dist/umd/popper.min.js",