为什么我的 JQuery 代码不想在正确编写代码时工作

Question

所以我的转盘有问题。基本上有一个按钮，根据下面的jQuery代码，它应该在点击后将其符号切换为播放和暂停，并且应该播放和暂停转盘，相反，它只是在你点击后切换得更快。此外，计时器也不工作。我觉得jQuery本身在根文件夹中出现故障。

<div class="container">
<div class="row row-content">
<div class="col">
<div id="mycarousel" class="carousel slide" data-ride="carousel">
<div class="carousel-inner" role="listbox">
<div class="carousel-item active">
<img class="d-block img-fluid" src="img/uthappizza.png" alt="uthapizza">
<div class="carousel-caption d-none d-md-block">
<h2>Uthappizza <span class="badge badge-danger mr-2">HOT</span><span class="badge badge-pill badge-secondary mr-2">$4.99</span> </h2>
<p class="d-none d-sm-block">A unique combination of Indian Uthappam (pancake) and Italian pizza, topped with Cerignola olives, ripe vine cherry tomatoes, Vidalia onion, Guntur chillies and Buffalo Paneer.</p>
</div>
</div>
<div class="carousel-item">
<img class="d-block img-fluid" src="img/buffet.png" alt="buffet">
<div class="carousel-caption d-none d-md-block">
<h2>Weekend Grand Buffet <span class="badge badge-danger mr-2">NEW</span></h2>
<p class="d-none d-sm-block">Featuring mouthwatering combinations with a choice of five different salads, six enticing appetizers, six main entrees and five choicest desserts. Free flowing bubbly and soft drinks. All for just $19.99 per person </p>
</div>
</div>
<div class="carousel-item">
<img class="d-block img-fluid" src="img/alberto.png" alt="alberto">
<div class="carousel-caption d-none d-md-block">
<h2>Alberto Somayya</h2>
<h4>Executive Chef</h4>
<p class="d-none d-sm-block">Award winning three-star Michelin chef with wide International experience having worked closely with whos-who in the culinary world, he specializes in creating mouthwatering Indo-Italian fusion experiences. </p>
</div>
</div>
<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>
<a class="carousel-control-prev" href="#mycarousel" role="button" data-slide="prev">
<span class="carousel-control-prev-icon"></span>
</a>
<a class="carousel-control-next" href="#mycarousel" role="button" data-slide="next">
<span class="carousel-control-next-icon"></span>
</a>
<!--  <div class="btn-group" id="carouselButton">
<button class="btn btn-danger btn-sm" id="carousel-pause">
<span class="fa fa-pause"></span>
</button>
<button class="btn btn-danger btn-sm" id="carousel-play">
<span class="fa fa-play"></span> -->
<button class="btn btn-danger btn-sm" id="carouselButton">
<span id="carousel-button-icon" class="fa fa-pause"></span>
</button>
</div>
</div>
</div>
</div>
</div>

Jquery在这里

$(document).ready(function () {
$('#mycarousel').carousel({ interval: 2000 });
$('#carouselButton').click(function () {
if ($('#carouselButton').children('span').hasClass('fa-pause')){
$('#mycarousel').carousel('pause');
$('#carouselButton').children('span').removeClass('fa-pause');
$('#carouselButton').children('span').addClass('fa-play');
}
else if ($('#carouselButton').children('span').hasClass('fa-play')) {
$('#mycarousel').carousel('cycle');
$('#carouselButton').children('span').removeClass('fa-play');
$('#carouselButton').children('span').addClass('fa-pause');
}
});
});

Answer 1

是否在2秒之前再次单击？这是我的原因，课堂作业被自己绊倒了。

试着在交换了类之后调用旋转木马。

$(document).ready(function () {
$('#mycarousel').carousel({ interval: 2000 });
$('#carouselButton').click(function () {
if ($('#carouselButton').children('span').hasClass('fa-pause')){
$('#carouselButton').children('span').removeClass('fa-pause');
$('#carouselButton').children('span').addClass('fa-play');
$('#mycarousel').carousel('pause');
}
else if ($('#carouselButton').children('span').hasClass('fa-play')) {
$('#carouselButton').children('span').removeClass('fa-play');
$('#carouselButton').children('span').addClass('fa-pause');
$('#mycarousel').carousel('cycle');
}
});
});