jQuery:点击显示，点击隐藏，循环无限

Question

1. 首先，有一行带有“查看更多”按钮的图像。
2. 当单击“查看更多”按钮时，将在第一行图像之后添加第二行图像，并将“查看更多”按钮替换为“查看更少”按钮。
3. 当单击“查看较少”按钮时，上面步骤中添加的第二行图像将被删除，而“查看较少”按钮将被删除。

问题：我如何使它成为一个无限循环，其中“查看更多”按钮将在步骤3之后重新出现，从而允许重复？

这里是jQuery：

    $(document).ready(function() {
        //Hides the new row to prepare for click event
        $('.images-section').children('.new-row').hide();
        //Creating variables for see more/less buttons
        var more = $('.images-button-more');
        var less = $('.images-button-less'); 
        less.hide();
        //Add new row on click of see more button
        more.on('click', function() {
            $('.images-section').children('.new-row').show(function() {
                $(this).insertAfter('.old-row').slideDown('1000');
                more.fadeOut('slow', function() {
                    less.insertAfter(more).fadeIn('slow');
                });
            });
        });
        //Remove new row on click of see less button
        less.on('click', function() {
            $('.new-row').slideUp('1000', function() {
                less.fadeOut('slow');
            });
        });
    });

下面是HTML：

<section class="no-padding remove-tablet">
        <div class="container-fluid images-section">
            <div class="row no-gutter old-row">
              <div class="col-lg-2 col-sm-6">
                    <img src="img/ant-johns.jpg" class="img-responsive" alt="Ant Johns" width="317px" height="322px">
                </div>
                <div class="col-lg-2 col-sm-6">
                    <img src="img/white-guy.jpg" class="img-responsive" alt="Arnold Jr" width="317px" height="322px">
                </div>
                <div class="col-lg-2 col-sm-6">
                    <img src="img/enrique-double-bi.jpg" class="img-responsive" alt="Enrique Double Bi" width="317px" height="322px">
                </div>
                <div class="col-lg-2 col-sm-6">
                    <img src="img/anthony-b.jpg" class="img-responsive" alt="Anthony B" width="317px" height="322px">
                </div>
                <div class="col-lg-2 col-sm-6">
                    <img src="img/manny-most-muscular.jpg" class="img-responsive" alt="Manny Most Muscular" width="317px" height="322px">
                </div>
                <div class="col-lg-2 col-sm-6">
                    <img src="img/remi-model-tats.jpg" class="img-responsive" alt="Remi Model Tats" width="317px" height="322px">
                </div>
            </div>
            <div class="row no-gutter new-row">
              <div class="col-lg-2 col-sm-6">
                    <img src="img/ant-johns.jpg" class="img-responsive" alt="Ant Johns" width="317px" height="322px">
                </div>
                <div class="col-lg-2 col-sm-6">
                    <img src="img/white-guy.jpg" class="img-responsive" alt="Arnold Jr" width="317px" height="322px">
                </div>
                <div class="col-lg-2 col-sm-6">
                    <img src="img/enrique-double-bi.jpg" class="img-responsive" alt="Enrique Double Bi" width="317px" height="322px">
                </div>
                <div class="col-lg-2 col-sm-6">
                    <img src="img/anthony-b.jpg" class="img-responsive" alt="Anthony B" width="317px" height="322px">
                </div>
                <div class="col-lg-2 col-sm-6">
                    <img src="img/manny-most-muscular.jpg" class="img-responsive" alt="Manny Most Muscular" width="317px" height="322px">
                </div>
                <div class="col-lg-2 col-sm-6">
                    <img src="img/remi-model-tats.jpg" class="img-responsive" alt="Remi Model Tats" width="317px" height="322px">
                </div>
            </div>
            <div class="row">
                <div class="col-sm-12 text-center">
                    <a class="images-button-more" style="padding-bottom: 3px; border-bottom: 1px dotted rgb(130,181,65); position: relative; top: 5px; cursor: pointer; text-decoration: none; border-radius: 50%">See more</a>
                </div>
                <div class="col-sm-12 text-center">
                    <a class="images-button-less" style="padding-bottom: 3px; border-bottom: 1px dotted rgb(130,181,65); position: relative; top: 5px; cursor: pointer; text-decoration: none; border-radius: 50%">See less</a>
                </div>
            </div>
        </div>
    </section>

我试着将jQuery放在if语句周围，并将" isClosed，isNotClosed“这样的新变量放入其中，然后根据特定的事件和循环(如果isClosed为真)将它们的值从0更改为1，但这并没有起到任何作用。

Answer 1

您只是遗漏了jquery中的一行：

less.on('click', function() {
     $('.new-row').slideUp('1000', function() {
         less.fadeOut('slow');
         more.insertAfter(less).fadeIn('slow');//this line
     });
 });

Answer 2

一种选择是在页面加载时加载第二行图像，但是用display: none隐藏它，并给它一个类似于id='second-row'的id。

然后，在单击事件中，您可以执行以下操作：

$('#buttonId').on('click', function() {
 $('#second-row').slideToggle();
});

这是一把小提琴http://jsfiddle.net/kqvzhoo1/