Bootstrap Navbar Collapse not closing on Click

Question

I'm using Bootstrap an it's collapsed Navbar on a one-page website together with a simple scrolling script, so if I click on a single link the page scrolls down to anchor - works great. However the Navbar does not collapse when I click on a link which covers a lot of content on mobile devices - you first have to click on the toggle which is annoying. I found out that it should help to add the data-toggle and data-target attributes to the links, but it doesn't work at all - where is my mistake?

NAVIGATION:

<nav class="navbar navbar-default mainbar" role="navigation">
    <div class="navbar-header">
        <button type="button" class="navbar-toggle hvr-bounce-to-bottom" data- toggle="collapse" data-target=".navbar-collapse">
          <span class="sr-only">Toggle navigation</span>
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
          <span class="icon-bar"></span>
        </button>
    </div>

    <div class="collapse navbar-collapse navbar-collapse">
      <ul class="nav navbar-nav">
         <li><a data-toggle="collapse" data-target=".navbar-collapse" href="#link1" class="navelement">Link 1</a></li>

         <li><a data-toggle="collapse" data-target=".navbar-collapse" href="#link2" class="navelement">Link 2</a></li>

       </ul>
     </div>
</nav>

UPDATE: It's a Javascript problem. My smooth-scroll script causes an issue:

  var corp = $("html, body");
  $(".navelement").click(function() {
    var flag = $.attr(this, "href");
    corp.animate({
        scrollTop: $(schild).offset().top - 60
    }, 1600, function() {
        window.location.hash = flag;
    });
    return false;
});

It's a pretty simple script, but I have no clue what to do with it to make the navbar collapse.

Answer 1

Using the above example, what worked for me was to add data-toggle="collapse" data-target=".navbar-collapse" to the outer div

<div class="collapse navbar-collapse" id="my-navbar-collapse">

<div class="collapse navbar-collapse" id="my-navbar-collapse" toggle="collapse" data-target=".navbar-collapse">

The entire menu looks like this with the change:

 <nav class="navbar navbar-expand-xl navbar-light bg-light">
  <a class="navbar-brand" href="#">Main</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" data-toggle="collapse" data-target=".navbar-collapse" >
    <ul class="navbar-nav mr-auto">
      <li class="nav-item active">
        <a class="nav-link" routerLink="/home">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item active">
        <a class="nav-link" routerLink="/guitars">Guitars <span class="sr-only">(current)</span></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" routerLink="/nasa-image">NASA Image</a>
          <a class="dropdown-item disabled" href="#">Another action</a>
          <div class="dropdown-divider"></div>
          <a class="dropdown-item disabled" href="#">Something else here</a>
        </div>
      </li>
      <li class="nav-item">
        <a class="nav-link disabled" href="#">Disabled</a>
      </li>
    </ul>
   
  </div>
    </nav>