javascript - 无法显示 JavaScript 弹出窗口

Question

我正在尝试使用 JavaScript 显示弹出窗口，但是，带有 class="popup"的 div 是当前唯一显示的内容。 popup 和 popup2 都应该在用户执行操作时显示。我不确定我做错了什么。

HTML:

<div class="popup">
  <span class="popuptext" id="popup"></span>
</div>

<div class="popup2">
    <div class="popup2text" id="popup2"></div>
    <script src="/popup2.js"></script>
</div>

JavaScript:

$(() => {
  $('#enter').on('keypress', function(e) {
    if (e.keyCode == 13) {
      const newTask = $(this).val();
      if (newTask) {

上面这段javascript可以忽略

        var popup = document.getElementById("popup");
        popup.classList.toggle("show");
        var popup2 = document.getElementById("popup2");
        popup2.classList.toggle("show");
      }
    }
  });
});

CSS:

.popup {
  position: relative;
  display: inline-block;
  cursor: pointer;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.popuptext {
  visibility: hidden;
  width: 160px;
  height: 200px;
  background-color: #131313;
  color: #fff;
  opacity: 0.95;
  text-align: center;
  border-radius: 6px;
  padding: 8px 0;
  position: absolute;
  z-index: 1;
  left: 581px;
  top: 180px;
  margin-left: -80px;
}

.popup .show {
  visibility: visible;
  -webkit-animation: fadeIn 0.5s;
  animation: fadeIn 0.5s;
}

@-webkit-keyframes fadeIn {
  from {opacity: 0;} 
  to {opacity: 1;}
}

@keyframes fadeIn {
  from {opacity: 0;}
  to {opacity:1 ;}
}

#popup2 {
  visibility: hidden;
  color: white;
  font-family: 'Quicksand', sans-serif;
  font-size: 50px;
  top: 50px;
  left: 50px;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

#popup2 .show {
  visibility: visible;
  -webkit-animation: fadeIn 0.5s;
  animation: fadeIn 0.5s;
}

Answer 1

您的 HTML 代码无效。

改变这个

<div class="popup">
  <span class="popuptext" id="popup"></span>
</div>

<div class="popup2"></div>
    <div class="popup2text" id="popup2"></div>
    <script src="/popup2.js"></script>
</div>

对此

<div class="popup">
  <span class="popuptext" id="popup"></span>
</div>

<div class="popup2">
    <div class="popup2text" id="popup2"></div>
    <script src="/popup2.js"></script>
</div>