Stopping the carousel animation in Bootstrap 5: A step-by-step guide

I'm struggling to stop a Bootstrap 5 carousel with a button click.

The pause function seems to be ineffective.

You can view the code on Code Pen Example or see the code below.

document.getElementById("btnPause").addEventListener("click", function () {
  var carouselElement = document.getElementById("carouselAnimals");
  var carousel = new bootstrap.Carousel(carouselElement);
  carousel.pause(); // getting called, but not pausing

  // carousel('pause'); // doesn't work
  // carousel.carousel('pause'); // no effect
});
<div class='container'>
  <div class="container">
  <div class="row">
    <div class="col-3">
      <button id='btnPause' class="btn btn-secondary">Stop carousel</button>
    </div>
    <div class="col">
            <div id="carouselAnimals" class="carousel slide" data-bs-ride="carousel" data-bs-interval='1000' data-interval='100' >
        <div class="carousel-inner">
          <div class="carousel-item active">
            <img src="https://placekitten.com/800/500" class="d-block w-100" alt="...">
          </div>
          <div class="carousel-item">
            <img src="https://loremflickr.com/800/500" class="d-block w-100" alt="...">
          </div>
          <div class="carousel-item">
            <img src="http://placeimg.com/800/500/animals" class="d-block w-100" alt="...">
          </div>
        </div>
      </div>
    </div>
  </div>
</div>

Answer №1

It seems like the approach you are taking is leading to the creation of two separate carousel instances.

  1. The first one, which automatically scrolls, is generated by bootstrap.
  2. The second one is being created when you click your button.

However, the second carousel is not visible anywhere on the page.

To resolve this issue, you can initialize it manually before clicking the button:

var carouselElement = document.getElementById("carouselAnimals");

/* When manually initializing the carousel, ensure
   to specify properties as creating the slider manually
   may override html data-attributes */

var carousel = new bootstrap.Carousel(carouselElement, {
  interval: 100
});

document.getElementById("btnPause").addEventListener("click", function () {
  carousel.pause();
});

View a working example on JSFiddle (I apologize for not having a codepen account): https://jsfiddle.net/y5z98xfe/

Answer №2

Encountering the same issue led me to discover a solution - simply adding data-bs-pause="false" to the carousel fixed the problem seamlessly. Here's an example of how it can be implemented:

<div id="carouselAnimals" class="carousel slide" data-bs-pause="false">
...
</div>

Exploring the details behind the pause option, I discovered that by default, the value of "hover" causes the carousel to resume when the mouse moves away, potentially creating the appearance of continuous movement.

After including data-bs-pause="false" in my element, calling carousel.pause() function worked as intended.

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