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社区首页 >问答首页 >Html/CSS/Javascript: Popup onclick不适用于第二个div

问Html/CSS/Javascript: Popup onclick不适用于第二个div
EN

Stack Overflow用户
提问于 2018-07-20 10:37:16
回答 3查看 475关注 0票数 -1

当div被选中时，我打开一个小的弹出框。它可以工作，但如果我尝试第二次这样做(如下所示)，它不能工作。

感谢您能提供的任何帮助，非常感谢。以下是我来自w3schools的代码

HTML：

代码语言：javascript
复制
<div class="popup" onclick="myFunction()">
  Click me!
  <span class="popuptext" id="myPopup">Popup text...</span>
</div>

<div class="popup" onclick="myFunction2()">
  Click me2!
  <span class="popuptext" id="myPopup2">Popup text...2</span>
</div>

JavaScript：

代码语言：javascript
复制
function myFunction() {
  var popup =
    document.getElementById("myPopup");
  popup.classList.toggle("show");
}

function myFunction2() {
  var popup =
    document.getElementById("myPopup2");
  popup.classList.toggle("show");
}

CSS：

代码语言：javascript
复制
/* Popup container */
.popup {
  position: relative;
  display: inline-block;
  cursor: pointer;
}

/* The actual popup (appears on top) */
.popup .popuptext {
  visibility: hidden;
  width: 160px;
  background-color: #555;
  color: #fff;
  text-align: center;
  border-radius: 6px;
  padding: 8px 0;
  position: absolute;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  margin-left: -80px;
}

/* Popup arrow */
.popup .popuptext::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: #555 transparent transparent transparent;
}

/* Toggle this class when clicking on the popup 
     container (hide and show the popup) */
.popup .show {
  visibility: visible;
  -webkit-animation: fadeIn 1s;
  animation: fadeIn 1s
}
javascript
html
css
popup
EN

回答 3

Stack Overflow用户

回答已采纳

发布于 2018-07-20 10:40:23

myFunction声明了两次，第二次将覆盖第一次。

将其更改为myFunction2或任何更新您的onclick="myFunction2()"的内容

检查控制台中的错误总是很好的:)

​

代码语言：javascript
复制
 function myFunction() {
   var popup = 
   document.getElementById("myPopup");
   popup.classList.toggle("show");
  }
   function myFunction2() {
   var popup = 
   document.getElementById("myPopup2");
   popup.classList.toggle("show");
  }
代码语言：javascript
复制
body {
    padding-top: 80px;
    text-align: center;
}
/* Popup container */
 .popup {
 position: relative;
 display: inline-block;
 cursor: pointer;
 }

 /* The actual popup (appears on top) */
 .popup .popuptext {
 visibility: hidden;
 width: 160px;
 background-color: #555;
 color: #fff;
 text-align: center;
 border-radius: 6px;
 padding: 8px 0;
 position: absolute;
 z-index: 1;
 bottom: 125%;
 left: 50%;
 margin-left: -80px;
 }

 /* Popup arrow */
 .popup .popuptext::after {
 content: "";
 position: absolute;
 top: 100%;
 left: 50%;
 margin-left: -5px;
 border-width: 5px;
 border-style: solid;
 border-color: #555 transparent transparent 
 transparent;
 }

 /* Toggle this class when clicking on the popup 
 container (hide and show the popup) */
 .popup .show {
 visibility: visible;
 -webkit-animation: fadeIn 1s;
 animation: fadeIn 1s
 }
代码语言：javascript
复制
<div class="popup" onclick="myFunction()">Click 
me!
  <span class="popuptext" id="myPopup">Popup 
   text...</span>
</div>

<div class="popup" onclick="myFunction2()">Click 
me2!
  <span class="popuptext" id="myPopup2">Popup 
   text...2</span>
 </div>

​

票数 1
EN

Stack Overflow用户

发布于 2018-07-20 10:47:05

您的代码似乎工作得很好。

​

代码语言：javascript
复制
/* Popup container */
 .popup {
 position: relative;
 display: inline-block;
 cursor: pointer;
 }

 /* The actual popup (appears on top) */
 .popup .popuptext {
 visibility: hidden;
 width: 160px;
 background-color: #555;
 color: #fff;
 text-align: center;
 border-radius: 6px;
 padding: 8px 0;
 position: absolute;
 z-index: 1;
 bottom: 125%;
 left: 50%;
 margin-left: -80px;
 }

 /* Popup arrow */
 .popup .popuptext::after {
 content: "";
 position: absolute;
 top: 100%;
 left: 50%;
 margin-left: -5px;
 border-width: 5px;
 border-style: solid;
 border-color: #555 transparent transparent 
 transparent;
 }

 /* Toggle this class when clicking on the popup 
 container (hide and show the popup) */
 .popup .show {
 visibility: visible;
 -webkit-animation: fadeIn 1s;
 animation: fadeIn 1s
 }
代码语言：javascript
复制
<div class="popup" onclick="myFunction()">Click 
me!
  <span class="popuptext" id="myPopup">Popup 
   text...</span>
</div>

<div class="popup" onclick="myFunction2()">Click 
me2!
  <span class="popuptext" id="myPopup2">Popup 
   text...2</span>
 </div>
 <script>
   function myFunction() {
   var popup = 
   document.getElementById("myPopup");
   popup.classList.toggle("show");
  }
   function myFunction2() {
   var popup = 
   document.getElementById("myPopup2");
   popup.classList.toggle("show");
  }
  </script>

​

票数 0
EN

Stack Overflow用户

发布于 2018-07-20 12:20:23

这可以通过仅使用javascript添加点击事件来完成。使用此功能，您可以添加尽可能多的弹出元素。

​

代码语言：javascript
复制
  var popupArr = document.getElementsByClassName("popup");
  for (var index in popupArr) {
      popupArr[index].onclick = function(ev) {
          var popup = ev.target.children[0];
          popup.classList.toggle("show");
      }
  }
代码语言：javascript
复制
/* Popup container */
 .popup {
 position: relative;
 display: inline-block;
 cursor: pointer;
 }

 /* The actual popup (appears on top) */
 .popup .popuptext {
 visibility: hidden;
 width: 160px;
 background-color: #555;
 color: #fff;
 text-align: center;
 border-radius: 6px;
 padding: 8px 0;
 position: absolute;
 z-index: 1;
 bottom: 125%;
 left: 50%;
 margin-left: -80px;
 }

 /* Popup arrow */
 .popup .popuptext::after {
 content: "";
 position: absolute;
 top: 100%;
 left: 50%;
 margin-left: -5px;
 border-width: 5px;
 border-style: solid;
 border-color: #555 transparent transparent 
 transparent;
 }

 /* Toggle this class when clicking on the popup 
 container (hide and show the popup) */
 .popup .show {
 visibility: visible;
 -webkit-animation: fadeIn 1s;
 animation: fadeIn 1s
 }
代码语言：javascript
复制
<div class="popup">Click 
me!
  <span class="popuptext" >Popup 
   text...</span>
</div>

<div class="popup">Click 
me2!
  <span class="popuptext" >Popup 
   text...2</span>
 </div>

​

票数 0
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/51434277

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