javascript – 如何让每个部分中的第一个手风琴开始打开,但ALSO的行为与其他部分无关

    //Accordian jQuery
    $(document).ready(function () {
        $('.accordian-content').hide();
        $(".accordian-content:first").slideDown();
        $('.accordian-title').click(function () {
            const flag = $(this).find('.accordian-title-icon').hasClass('accordian-title-icon-open');
            $('.accordian-title-icon').removeClass('accordian-title-icon-open');
            $('.accordian-content').not($(this).next('.accordian-content')).slideUp();
            $(this).next('.accordian-content').slideToggle();
            if (!flag) {
                $(this).find('.accordian-title-icon').addClass('accordian-title-icon-open')

                //Add this code
               /* thisE = $(this)
                setTimeout(function () {
                    $('html, body').animate({
                        scrollTop: thisE.offset().top -75 }, 'slow');
                }, 450)//Wait for toggle animation to finish */

            } else {
                $(this).find('.accordian-title-icon').removeClass('accordian-title-icon-open')
            }

        });
    });
     .priority-lists {width:100%;}
        .accordian-title {
            width: 100%;
            cursor: pointer;
            padding: 20px 10px 20px 20px;
            font-size: 20px;
        }

        .accordian-item {
            color: rgba(40, 150, 211, 1);
            margin: 10px auto;
            width: 100%;
            max-width: 530px;
            background: #fff;
            border: solid 1px #f0f0f0;
            border-radius: 5px;
            -webkit-box-shadow: -4px 4px 5px 0px rgba(0,0,0,0.29);
            -moz-box-shadow: -4px 4px 5px 0px rgba(0,0,0,0.29);
            box-shadow: -4px 4px 5px 0px rgba(0,0,0,0.29);
            -webkit-transition: all .1s ease;
            -moz-transition: all .1s ease;
            -o-transition: all .1s ease;
            transition: all .1s ease;
        }

        .accordian-item:hover {
            -webkit-box-shadow: 0px 0px 0px 0px rgba(0,0,0,0.5);
            -moz-box-shadow: 0px 0px 0px 0px rgba(0,0,0,0.5);
            box-shadow: 0px 0px 0px 0px rgba(0,0,0,0.5);
        }

        .accordian .accordian-item .accordian-title .accordian-title-icon {
            background: #dedede;
            border-radius: 50%;
            width: 25px;
            height: 25px;
            display: inline-block;
            text-align: center;
            color: white;
            font-weight: 700;
            margin-right: 0;
            padding: 0 0 0 1px;
            position: relative;
            vertical-align: top;
            float: right;
            opacity: 1;
            -webkit-transition: all .3s ease;
            -moz-transition: all .3s ease;
            -o-transition: all .3s ease;
        }



            .accordian .accordian-item .accordian-title .accordian-title-icon:before {
                content: '+';
                display: block;
                position: absolute;
                width: 100%;
                font-size: 21px;
                line-height: 24px;
                margin: -1px;
            }

        .accordian .accordian-item .accordian-title .accordian-title-icon-open:before {
            display: none;
        }

        .accordian .accordian-item .accordian-title .accordian-title-icon-open:after {
            content: '-';
            margin-top: -3px;
            margin-left: -1px;
            display: block;
            position: absolute;
            text-align: center;
            width: 100%;
        }

        .accordian-content {
            color: #3a3a3a;
            padding: 0 20px 20px;
            text-align: left;
        }

        .accordian-content2 {
            color: #3a3a3a;
            padding: 0 20px 20px;
            text-align: left;
        }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>

<h2>SECTION 2</h2>

<div class="priority-lists">
                <div class="accordian">

                    <div class="accordian-item">
                        <div class="accordian-title">TITLE<span class="accordian-title-icon"></span></div>
                        <div class="accordian-content" style="display: none;">
                            <p>This is a sentence.</p>
                        </div>
                    </div>

                    <div class="accordian-item">
                        <div class="accordian-title">TITLE<span class="accordian-title-icon"></span></div>
                        <div class="accordian-content" style="display: none;">
                            <p>This is a sentence</p>
                        </div>
                    </div>

                    <div class="accordian-item">
                        <div class="accordian-title">TITLE<span class="accordian-title-icon"></span></div>
                        <div class="accordian-content" style="display: none;">
                            <p>this is a sentence</p>
                        </div>
                    </div>

                </div>
                
                <h2>SECTION 2</h2>
                
 <div class="priority-lists">
                <div class="accordian">

                    <div class="accordian-item">
                        <div class="accordian-title">TITLE<span class="accordian-title-icon"></span></div>
                        <div class="accordian-content" style="display: none;">
                            <p>This is a sentence.</p>
                        </div>
                    </div>

                    <div class="accordian-item">
                        <div class="accordian-title">TITLE<span class="accordian-title-icon"></span></div>
                        <div class="accordian-content" style="display: none;">
                            <p>This is a sentence</p>
                        </div>
                    </div>

                    <div class="accordian-item">
                        <div class="accordian-title">TITLE<span class="accordian-title-icon"></span></div>
                        <div class="accordian-content" style="display: none;">
                            <p>this is a sentence</p>
                        </div>
                    </div>

                </div>

我试图让每个部分的第一个手风琴开始打开,但也表现为独立于其他部分(即,当你在一个部分打开接近的手风琴项目时,另一个部分不受影响,反之亦然.

我添加了$(“.accordian-content:first”).slideDown();这有效但只适用于第一个

最佳答案 而不是关闭所有.accordian内容元素 – 您只想关闭那些属于当前手风琴的部分:

$(this).parents('.accordian').find('.accordian-content')

以下是代码中的修复:

//Accordian jQuery
    $(document).ready(function () {
        $('.accordian-content').hide();
        $(".accordian .accordian-item:first-child .accordian-content").slideDown();
        $('.accordian-title').click(function () {
            const flag = $(this).find('.accordian-title-icon').hasClass('accordian-title-icon-open');
            $(this).parents('.accordian').find('.accordian-title-icon').removeClass('accordian-title-icon-open');
            $(this).parents('.accordian').find('.accordian-content').not($(this).next('.accordian-content')).slideUp();
            $(this).next('.accordian-content').slideToggle();
            if (!flag) {
                $(this).find('.accordian-title-icon').addClass('accordian-title-icon-open')

                //Add this code
               /* thisE = $(this)
                setTimeout(function () {
                    $('html, body').animate({
                        scrollTop: thisE.offset().top -75 }, 'slow');
                }, 450)//Wait for toggle animation to finish */

            } else {
                $(this).find('.accordian-title-icon').removeClass('accordian-title-icon-open')
            }

        });
    });
.priority-lists {width:100%;}
        .accordian-title {
            width: 100%;
            cursor: pointer;
            padding: 20px 10px 20px 20px;
            font-size: 20px;
        }

        .accordian-item {
            color: rgba(40, 150, 211, 1);
            margin: 10px auto;
            width: 100%;
            max-width: 530px;
            background: #fff;
            border: solid 1px #f0f0f0;
            border-radius: 5px;
            -webkit-box-shadow: -4px 4px 5px 0px rgba(0,0,0,0.29);
            -moz-box-shadow: -4px 4px 5px 0px rgba(0,0,0,0.29);
            box-shadow: -4px 4px 5px 0px rgba(0,0,0,0.29);
            -webkit-transition: all .1s ease;
            -moz-transition: all .1s ease;
            -o-transition: all .1s ease;
            transition: all .1s ease;
        }

        .accordian-item:hover {
            -webkit-box-shadow: 0px 0px 0px 0px rgba(0,0,0,0.5);
            -moz-box-shadow: 0px 0px 0px 0px rgba(0,0,0,0.5);
            box-shadow: 0px 0px 0px 0px rgba(0,0,0,0.5);
        }

        .accordian .accordian-item .accordian-title .accordian-title-icon {
            background: #dedede;
            border-radius: 50%;
            width: 25px;
            height: 25px;
            display: inline-block;
            text-align: center;
            color: white;
            font-weight: 700;
            margin-right: 0;
            padding: 0 0 0 1px;
            position: relative;
            vertical-align: top;
            float: right;
            opacity: 1;
            -webkit-transition: all .3s ease;
            -moz-transition: all .3s ease;
            -o-transition: all .3s ease;
        }



            .accordian .accordian-item .accordian-title .accordian-title-icon:before {
                content: '+';
                display: block;
                position: absolute;
                width: 100%;
                font-size: 21px;
                line-height: 24px;
                margin: -1px;
            }

        .accordian .accordian-item .accordian-title .accordian-title-icon-open:before {
            display: none;
        }

        .accordian .accordian-item .accordian-title .accordian-title-icon-open:after {
            content: '-';
            margin-top: -3px;
            margin-left: -1px;
            display: block;
            position: absolute;
            text-align: center;
            width: 100%;
        }

        .accordian-content {
            color: #3a3a3a;
            padding: 0 20px 20px;
            text-align: left;
        }

        .accordian-content2 {
            color: #3a3a3a;
            padding: 0 20px 20px;
            text-align: left;
        }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>

<h2>SECTION 2</h2>

<div class="priority-lists">
                <div class="accordian">

                    <div class="accordian-item">
                        <div class="accordian-title">TITLE<span class="accordian-title-icon"></span></div>
                        <div class="accordian-content" style="display: none;">
                            <p>This is a sentence.</p>
                        </div>
                    </div>

                    <div class="accordian-item">
                        <div class="accordian-title">TITLE<span class="accordian-title-icon"></span></div>
                        <div class="accordian-content" style="display: none;">
                            <p>This is a sentence</p>
                        </div>
                    </div>

                    <div class="accordian-item">
                        <div class="accordian-title">TITLE<span class="accordian-title-icon"></span></div>
                        <div class="accordian-content" style="display: none;">
                            <p>this is a sentence</p>
                        </div>
                    </div>

                </div>
                
                <h2>SECTION 2</h2>
                
 <div class="priority-lists">
                <div class="accordian">

                    <div class="accordian-item">
                        <div class="accordian-title">TITLE<span class="accordian-title-icon"></span></div>
                        <div class="accordian-content" style="display: none;">
                            <p>This is a sentence.</p>
                        </div>
                    </div>

                    <div class="accordian-item">
                        <div class="accordian-title">TITLE<span class="accordian-title-icon"></span></div>
                        <div class="accordian-content" style="display: none;">
                            <p>This is a sentence</p>
                        </div>
                    </div>

                    <div class="accordian-item">
                        <div class="accordian-title">TITLE<span class="accordian-title-icon"></span></div>
                        <div class="accordian-content" style="display: none;">
                            <p>this is a sentence</p>
                        </div>
                    </div>

                </div>

为了将每个手风琴中的第一个元素设置为打开,我使用了

$(".accordian .accordian-item:first-child .accordian-content").slideDown();
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