Hiding the Previous or Next Button on the First and Last Item in a Twitter Bootstrap Carousel

Is there a way to hide the previous button on the first item and hide the right button when the carousel reaches the last item? I've tried different solutions but couldn't get it to work. Any help in understanding how to implement this for a Bootstrap carousel would be greatly appreciated. Thank you in advance for your assistance.

Here is the tabbed slider I'm working with: http://codepen.io/hafsadanguir/pen/ZONxvV

(function($) {

     $(document).ready( function() {
         $('#myCarousel').carousel({
             pause: true,
             interval: false
         });

         $(".prev-slide").click(function(){
             $("#myCarousel").carousel('prev');
          });
          
          $(".next-slide").click(function(){
              $("#myCarousel").carousel('next');
          });


          var clickEvent = false;
          $('#myCarousel').on('click', '.nav a', function() {
              clickEvent = true;
              $('.nav li').removeClass('active');
              $(this).parent().addClass('active');
          }).on('slid.bs.carousel', function(e) {
              if(!clickEvent) {
                  var count = $('.nav li').length -1;
                  var current = $('.nav li.active');
                  current.removeClass('active').next().addClass('active');
                  var id = parseInt(current.data('slide-to')) +1;
                  if(count+1 == id) {
                      $('.nav li').first().addClass('active');
                  }
              }
          });

    });

})(jQuery);

Answer №1

  1. To modify the appearance of a control, you can utilize the `.css()` method.

  2. Utilize the `slid.bs.carousel` event to hide an arrow. If the item is marked as `.active`, it means it has just been activated.

    This event occurs when the carousel finishes its sliding transition.

  3. Employ the `slide.bs.carousel` event to display an arrow. If an item is flagged as `.active`, it indicates that the item has become inactive at that moment.

    This event triggers immediately upon invoking the slide instance method.

Please review the outcome. Is it in alignment with your desired result?

http://codepen.io/glebkema/pen/EgawBK

var myCarousel   = $('#myCarousel');
var itemFirst    = myCarousel.find('.carousel-inner > .item:first-child');
var itemLast     = myCarousel.find('.carousel-inner > .item:last-child');
var controlLeft  = myCarousel.find('a.left.carousel-control');
var controlRight = myCarousel.find('a.right.carousel-control');

hideControl();

myCarousel.on('slid.bs.carousel', function() {
  hideControl(); 
});
myCarousel.on('slide.bs.carousel', function() {
  showControl(); 
});

function hideControl() {
  if ( itemFirst.hasClass('active') ) {
    controlLeft.css('display', 'none');
  }
  if ( itemLast.hasClass('active') ) {
    controlRight.css('display', 'none');
    myCarousel.carousel('pause');  
  } 
}

function showControl() {
  if ( itemFirst.hasClass('active') ) {
    controlLeft.css('display', 'block');
  }
  if ( itemLast.hasClass('active') ) {
    controlRight.css('display', 'block');
  }
}
/* Make the images wide and responsive. */
.carousel-inner img {
  height: auto;
  width: 100%;
}
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">

<div id="myCarousel" class="carousel slide" data-ride="carousel">
  <ol class="carousel-indicators">
    <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
    <li data-target="#myCarousel" data-slide-to="1"></li>
    <li data-target="#myCarousel" data-slide-to="2"></li>
  </ol>
  <div class="carousel-inner" role="listbox">
    <div class="item active">
      <img src="https://via.placeholder.com/900x300/c69/f9c/?text=Only%20Forward" alt="">
    </div>
    <div class="item">
      <img src="https://via.placeholder.com/900x300/9c6/cf9/?text=Both%20Directions" alt="">
    </div>
    <div class="item">
      <img src="https://via.placeholder.com/900x300/69c/9cf/?text=Only%20Back" alt="">
    </div>
  </div>
  <a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev"><span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span><span class="sr-only">Previous</span></a>
  <a class="right carousel-control" href="#myCarousel" role="button" data-slide="next"><span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span><span class="sr-only">Next</span></a>
</div>

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

Answer №2

Include the following snippet in your CSS file:

.carousel-control {
  visibility: hidden;
}

Answer №3

To locate the specific element in the code, examine the html file.

Use the keyboard shortcut ctrl + f while viewing your html document.

Type in "next" or "previous" to easily identify and remove the corresponding classes present.

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