Modifying the Carousel Interval on the Fly: A Guide

I've been trying to figure out how to adjust the interval time on a Bootstrap carousel. I know you can set it initially using:

$('.carousel').carousel({interval: 1000 });

But what if I want the interval to change to 2 seconds after, let's say, 10 seconds?

setTimeout(function(){ }, 10000);

Has anyone tried this before and have any insights?

Answer №1

If you want to change the interval for a carousel, one trick is to initially set it to 1000 and then dispose of it before setting it again to 2000. This method may not be official, but it can work well.

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">

<div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel">
    <ol class="carousel-indicators">
        <li data-target="#carouselExampleIndicators" data-slide-to="0" class="active"></li>
        <li data-target="#carouselExampleIndicators" data-slide-to="1"></li>
        <li data-target="#carouselExampleIndicators" data-slide-to="2"></li>
    </ol>
    <div class="carousel-inner">
        <div class="carousel-item active">
            <img src="https://picsum.photos/1920/1080?random=1" class="d-block w-100" alt="img">
        </div>
        <div class="carousel-item">
            <img src="https://picsum.photos/1920/1080?random=2" class="d-block w-100" alt="img">
        </div>
        <div class="carousel-item">
            <img src="https://picsum.photos/1920/1080?random=3" class="d-block w-100" alt="img">
        </div>
    </div>
    <a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev">
        <span class="carousel-control-prev-icon" aria-hidden="true"></span>
        <span class="sr-only">Previous</span>
    </a>
    <a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next">
        <span class="carousel-control-next-icon" aria-hidden="true"></span>
        <span class="sr-only">Next</span>
    </a>
</div>

<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
<script>

    $('.carousel').carousel({
        interval: 1000
    });
    
    setInterval(() => {
        $('.carousel').carousel('dispose')
        $('.carousel').carousel({
          interval: 2000
        });
    }, 10000)

</script>

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