unable to expand navbar in Angular 5 project with Bootstrap 4

I am encountering an issue with my navigation bar in a project that uses Angular5 and Bootstrap4. The navigation bar is supposed to expand when the screen size is small, as indicated by the navbar-expand-sm class in Bootstrap4. However, the navbar remains expanded at all screen sizes in my Angular5 project.

In other instances where I have tested this code outside of the Angular5 project, the navigation bar expands correctly as expected.

Given that the issue only occurs within the Angular5 project, I suspect that there may be interference between Angular5 and Bootstrap4 causing this problem.

To provide some context, the structure of my Angular project is simple, consisting of a header component and a router outlet which currently displays the home component:

Question:

Why is my navbar expanding even at large screen sizes in my Angular5 project, and what steps can I take to resolve this? Your insights would be greatly appreciated.

htmlcssangulartwitter-bootstrapbootstrap-4

Answer №1

Include a button with the ability to expand and collapse using the class attribute set to navbar-toggler.

Wrap all links within a div that has the classes collapse and navbar-collapse. The button's data-target should be set to the id of this div.

Here is an example:

<nav class="navbar navbar-expand-sm">
  <button
    class="navbar-toggler btn"
    data-target="#navbarCollapse"
    data-toggle="collapse"
    type="button"
  >
    btn
  </button>

  <div class="collapse navbar-collapse" id="navbarCollapse">
      <div class="navbar-nav">
          <ul class="navbar-nav">
              <li class="nav-item">
                  <a class="nav-link" href="#">Link 1</a>
              </li>
              <li class="nav-item">
                  <a class="nav-link" href="#">Link 2</a>
              </li>
              <li class="nav-item">
                  <a class="nav-link" href="#">Link 3</a>
              </li>
          </ul> 
       </div>
    </div>
</nav>

Answer №2

The issue with the navigation expansion not functioning is likely due to missing dependencies in your package.json file. Please ensure that you have included the following libraries:

  1. jQuery
  2. Popper.js

To resolve this, add the corresponding JS files for jQuery and Popper.js to your Angular CLI configuration file so that they will be properly included by Angular.

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