jQuery:not()选择器在addClass()之后的元素上不工作(实时/实时)

Question

我在使用:not()选择器/排除器时遇到问题.我正在做的是为打开的手风琴面板添加一个'.Activated'类(带有class'.panel').然后当使用'.panel'类悬停所有元素时,我想运行一个函数.但是,有时会有两个类'class ="panel Activated''的元素,我不想运行该函数.

这里还有一些我的相关代码:

function onOpenPanel(obj){
        var slideR = obj.index + 1;
        $('.panel:nth-child(' + slideR + ')').addClass('Activated');
    } 

$('.panel:not(.Activated)').hover(function(){
        $(this).css('background-position','0px top');
    },function(){
        $(this).css('background-position','-41px top');
    });

您会在网站上注意到,在打开的手风琴面板上,背景跳跃了41px,因为我的:not()选择器没有发现该面板也有'.Activated'类,因此不应受到.hover功能.

HTML:

<div class="accordion">

    <!-- First slide -->

    <div>
        <img src="img/img-1.jpg" width="10" />

        <div class="caption">
        <p class="mask-1"></p>
            <p class="title sl1">
                Professional Products & Solutions
            </p>
            <p class="body one">As a global leader across many sectors, Sony Professional combine world class knowledge with groundbreaking technology – inspiring businesses to amaze their customers.<br />
            </p>

        </div>

    </div>

    <!-- First slide -->

    <!-- Second slide -->

    <div>
        <img src="img/img-2-1.jpg" />

        <div class="caption">
        <p class="mask-2"></p>
            <p class="title sl2">
                4K Digital Cinema
            </p>
            <p class="body two">Taking digital cinema to new levels of immersive engagement, the superior resolution of Sony 4K creates the ultimate in crowd-pleasing experiences – partner with us for business growth.
            </p>

            <a href="http://stg.sony.co.uk/pro/hub/digital-cinema" class="slide-link">Read more<img src="img/cta-block.jpg" class="cta-block"/></a>
        </div>

    </div>

    <!-- Second slide -->

    <!-- Third slide -->

    <div class="sonySlideIn">
        <img src="img/img-3.jpg" />

        <div class="caption">
        <p class="mask-3"></p>
            <p class="title sl3">
                Broadcast & Pro AV
            </p>
            <p class="body three">Shoot, edit, broadcast, archive. Whatever your priority – from image quality to production efficiency – Sony enables you realise your vision without compromises.
            </p>
            <img src="img/prod-3.jpg" width="400" height="98" id="prod-3"/>
            <a href="http://stg.sony.co.uk/pro/hub/broadcast-professional-audio-video" class="slide-link">Read more<img src="img/cta-block.jpg" class="cta-block"/></a>
        </div>

    </div>

    <!-- Third slide -->

    <!-- Fourth slide -->

    <div class="sonySlideIn">
        <img src="img/img-4.jpg" />

        <div class="caption">
        <p class="mask-4"></p>
            <p class="title sl4">
                Industrial Cameras
            </p>
            <p class="body four">From machine vision to visual communications and OEM conference solutions, see how the application of Sony imaging expertise delivers market-leading solutions for industrial environments.
            </p>
            <img src="img/prod-4.jpg" id="prod-4"/>
            <a href="http://stg.sony.co.uk/pro/hub/industrial-machine-vision-cameras" class="slide-link">Read more<img src="img/cta-block.jpg" class="cta-block"/></a>
        </div>

    </div>

    <!-- Fourth slide -->

    <!-- Fifth slide -->

    <div class="sonySlideIn">
        <img src="img/img-5.jpg" />

        <div class="caption">
        <p class="mask-5"></p>
            <p class="title sl5">
                Medical
            </p>
            <p class="body five">Driving the future of medical imaging by redefining clarity across monitors, cameras, radiology imagers, printers and recorders, Sony Medical creates pioneering solutions – including 3D – that enable clearer diagnoses and more efficient workflows.
            </p>
            <img src="img/prod-5.jpg" id="prod-5"/>
            <a href="http://stg.sony.co.uk/pro/hub/medical" class="slide-link">Read more<img src="img/cta-block.jpg" class="cta-block"/></a>
        </div>

    </div>

    <!-- Fifth slide -->

    <!-- Sixth slide -->

    <div class="sonySlideIn">
        <img src="img/img-6.jpg" />

        <div class="caption">
        <p class="mask-6"></p>
            <p class="title sl6">
                Projectors, Displays & Digital Signage
            </p>
            <p class="body six">Designed to attract attention, engage interest and add the wow factor to professional environments, Sony bring superior image quality to businesses, organisations, education establishments and venues of every size. 
            </p>
            <img src="img/prod-6.jpg" id="prod-6"/>
            <a href="http://stg.sony.co.uk/pro/hub/displays-projectors-digital-signage" class="slide-link">Read more<img src="img/cta-block.jpg" class="cta-block"/></a>
        </div>

    </div>

    <!-- Sixth slide -->

    <!-- Seventh slide -->

    <div class="sonySlideIn">
        <img src="img/img-7.jpg" />

        <div class="caption">
        <p class="mask-7"></p>
            <p class="title sl7">
                Sports & Stadiums
            </p>
            <p class="body seven">Maximising customer engagement and satisfaction, our range of leading AV solutions for large arenas drives footfall, spend, loyalty and advocacy – see the advantages of partnering with Sony.
            </p>
            <a href="http://stg.sony.co.uk/pro/hub/solutions-stadiums-arenas" class="slide-link">Read more<img src="img/cta-block.jpg" class="cta-block"/></a>
        </div>

    </div>

    <!-- Seventh slide -->

    <!-- Eigth slide -->

    <div class="sonySlideIn">
        <img src="img/img-8.jpg" />

        <div class="caption">
        <p class="mask-8"></p>
            <p class="title sl8">
                Video Security
            </p>
            <p class="body eight">See the most technically advanced, network based, end-to-end video security solutions – from hybrid and Full HD IP cameras to recorders and third-party compatible software.
            </p>
            <img src="img/prod-8.jpg" id="prod-8"/>
            <a href="http://stg.sony.co.uk/pro/hub/video-security" class="slide-link">Read more<img src="img/cta-block.jpg" class="cta-block"/></a>
        </div>

    </div>

    <!-- Eigth slide -->

</div>

Answer 1

jQuery选择器返回执行代码时匹配的元素,因此在发生这种情况后,它们不会反映以后对DOM的更改.

您的代码将hover事件处理程序绑定到Activated代码执行时没有类的元素(可能是在DOM就绪),但添加类不会删除这些事件处理程序.

如果您希望它们动态响应,请查看事件委派.