javascript - 如何制作多模态(使用纯 css)以定位唯一 ID？

Question

我有多个具有不同画廊集的画廊，但问题是如何在事件中使用现有代码正确定位

这是我目前在单模态上工作的 js

// Get the modal
var modal = document.getElementById('myModal');

// Get the button that opens the modal
var btn = document.getElementById("myBtn");

// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];

// When the user clicks on the button, open the modal
btn.onclick = function() {
    modal.style.display = "block";
}

// When the user clicks on <span> (x), close the modal
span.onclick = function() {
    modal.style.display = "none";
}

// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
    if (event.target == modal) {
        modal.style.display = "none";
    }
}

/* The Modal (background) */
.modal {
  display: none; /* Hidden by default */
  position: fixed; /* Stay in place */
  z-index: 1; /* Sit on top */
  left: 0;
  top: 0;
  width: 100%; /* Full width */
  height: 100%; /* Full height */
  overflow: auto; /* Enable scroll if needed */
  background-color: rgb(0,0,0); /* Fallback color */
  background-color: rgba(0,0,0,0.9); /* Black w/ opacity */
}

/* Modal Content/Box */
.modal-content {
  background-color: #fefefe;
  margin: 15% auto; /* 15% from the top and centered */
  padding: 20px;
  border: 1px solid #888;
  width: 80%; /* Could be more or less, depending on screen size */
}

这里是通过ID打开的html代码；我需要的是像 data-target="model-01"然后是 model-02 来知道需要打开什么

 <a id="myBtn" href="javascript:void();">
 <!-- The Modal -->
        <div id="myModal" class="modal">
            <!-- Modal content -->
            <div class="modal-content">
                <span class="close">&times;</span>
                <?php
                    include_once("gallery/gallery_modal.php");
                ?>
            </div>
        </div>```

Answer 1

您可以为所有按钮添加相同的类“open-modal”和唯一的数据目标属性

<a id="myBtn" class="open-modal" data-target="myModal<?=$r['id'];?>" href="#">Button</a>

<span class="close" data-target="myModal<?=$r['id'];?>">&times;</span>

比在 js 中

$('.open-modal').on('click', function(){
   event.preventDefault();
   var modal = $('#' + $(this).data('target'));

   modal.css('display', 'block');
});

$('.close').on('click', function(){
   var modal = $('#' + $(this).data('target'));

   modal.css('display', 'none');
});