Question

我使用这个标准的Bootstrap轮播：

<div id="myCarousel" class="carousel slide" data-ride="carousel">
    <!-- Indicators -->
    <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>
        <li data-target="#myCarousel" data-slide-to="3"></li>
    </ol>

    <!-- Wrapper for slides -->
    <div class="carousel-inner" role="listbox">
        <div class="item active">
            <div class="carousel-caption">
                <h1>App Preview</h1>
            </div>
        </div>

        <div class="item">
            <div class="carousel-caption">
                <h1>Contact Details</h1>
            </div>
        </div>

        <div class="item">
            <div class="carousel-caption">
                <h1>Choose plan</h1>
            </div>
        </div>

        <div class="item">
            4
        </div>
    </div>

    <!-- Left and right controls -->
    <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>

我试图隐藏之前的＆＃39;和＆＃39; next＆＃39;如果用户位于轮播的第一个或最后一个项目上，则分别按下按钮：

$('.carousel').carousel.on('slid', '', function () {
    var $this = $(this);

    $this.children('.carousel-control').show();

    if ($('.carousel-inner .item:first').hasClass('active')) {
        $this.children('.left.carousel-control').hide();
    } else if ($('.carousel-inner .item:last').hasClass('active')) {
        $this.children('.right.carousel-control').hide();
    }

});

在上面的JavaScript的第一行，我得到了一个＆＃39; carousel.on不是一个功能＆＃39;错误。 JQuery显然正在工作，并且轮播对象被识别。以下是我在使用轮播的ASP.NET MVC页面顶部使用的包含：

<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js" integrity="sha512-K1qjQ+NcF2TYO/eI3M6v8EiNYZfA95pQumfvcVrTHtwQVDG+aHRqLi/ETn2uB+1JqwYqVG3LIvdm9lj6imS/pQ==" crossorigin="anonymous"></script>

Answer 1

应该是

$('.carousel').on('slid', '', function () {
    ...
});

JSFiddle Demo

Bootstrap carousel - carousel.on不是一个功能

1 个答案: