如何在通过jquery发生更改事件时获取多个复选框切换开关值

Question

我已经在我的网站中实现了基于复选框的切换开关。当我使用一个切换开关时，我可以获得我单击的复选框的值。但是当我实现两个或多个切换开关时，我无法获得单击的复选框的值。它总是返回第一个复选框的值。

您可以通过单击我在以下小提琴中创建的第二个切换开关来理解我在说什么。

https://jsfiddle.net/wughm90b/2/

这是我的html代码：

<div class="switch" id="switch">
  <input id="cmn-toggle-1" class="cmn-toggle cmn-toggle-round" type="checkbox" checked data-value="one" >
  <label for="cmn-toggle-1"></label>
</div>

<br>

<div class="switch" id="switch">
  <input id="cmn-toggle-1" class="cmn-toggle cmn-toggle-round" type="checkbox" data-value="two">
  <label for="cmn-toggle-1"></label>
</div>

这是我的 jQuery 代码：

$(document).on("change", ".switch", function () {
    alert($(this).find('input').data('value'));
});

Answer 1

您已经复制了两个开关的 id。请在下面找到更正后的代码

<div class="switch" id="switch">
  <input id="cmn-toggle-1" class="cmn-toggle cmn-toggle-round" type="checkbox" checked data-value="one" >
  <label for="cmn-toggle-1"></label>
</div>

<br>

<div class="switch" id="switch">
  <input id="cmn-toggle-2" class="cmn-toggle cmn-toggle-round" type="checkbox" data-value="two">
  <label for="cmn-toggle-2"></label>
</div>

$(document).on("change", ".switch", function () {
	alert($(this).find('input').data('value'));
});

/* ============================================================
  COMMON
============================================================ */
#wrapper {
  min-width: 600px;
}

.settings {
  display: table;
  width: 100%;
}
.settings .row {
  display: table-row;
}
.settings .question,
.settings .switch {
  display: table-cell;
  vertical-align: middle;
  padding: 10px;
}
.settings .question {
  width: 600px;
  font-family: "Roboto Slab", serif;
  font-size: 20px;
}

/* ============================================================
  COMMON
============================================================ */
.cmn-toggle {
  position: absolute;
  margin-left: -9999px;
  visibility: hidden;
}
.cmn-toggle + label {
  display: block;
  position: relative;
  cursor: pointer;
  outline: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* ============================================================
  SWITCH 1 - ROUND
============================================================ */
input.cmn-toggle-round + label {
  padding: 2px;
  width: 120px;
  height: 60px;
  background-color: #dddddd;
  -webkit-border-radius: 60px;
  -moz-border-radius: 60px;
  -ms-border-radius: 60px;
  -o-border-radius: 60px;
  border-radius: 60px;
}
input.cmn-toggle-round + label:before, input.cmn-toggle-round + label:after {
  display: block;
  position: absolute;
  top: 1px;
  left: 1px;
  bottom: 1px;
  content: "";
}
input.cmn-toggle-round + label:before {
  right: 1px;
  background-color: #f1f1f1;
  -webkit-border-radius: 60px;
  -moz-border-radius: 60px;
  -ms-border-radius: 60px;
  -o-border-radius: 60px;
  border-radius: 60px;
  -webkit-transition: background 0.4s;
  -moz-transition: background 0.4s;
  -o-transition: background 0.4s;
  transition: background 0.4s;
}
input.cmn-toggle-round + label:after {
  width: 58px;
  background-color: #fff;
  -webkit-border-radius: 100%;
  -moz-border-radius: 100%;
  -ms-border-radius: 100%;
  -o-border-radius: 100%;
  border-radius: 100%;
  -webkit-box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  -moz-box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  -webkit-transition: margin 0.4s;
  -moz-transition: margin 0.4s;
  -o-transition: margin 0.4s;
  transition: margin 0.4s;
}
input.cmn-toggle-round:checked + label:before {
  background-color: #8ce196;
}
input.cmn-toggle-round:checked + label:after {
  margin-left: 60px;
}

/* ============================================================
  SWITCH 2 - ROUND FLAT
============================================================ */
input.cmn-toggle-round-flat + label {
  padding: 2px;
  width: 120px;
  height: 60px;
  background-color: #dddddd;
  -webkit-border-radius: 60px;
  -moz-border-radius: 60px;
  -ms-border-radius: 60px;
  -o-border-radius: 60px;
  border-radius: 60px;
  -webkit-transition: background 0.4s;
  -moz-transition: background 0.4s;
  -o-transition: background 0.4s;
  transition: background 0.4s;
}
input.cmn-toggle-round-flat + label:before, input.cmn-toggle-round-flat + label:after {
  display: block;
  position: absolute;
  content: "";
}
input.cmn-toggle-round-flat + label:before {
  top: 2px;
  left: 2px;
  bottom: 2px;
  right: 2px;
  background-color: #fff;
  -webkit-border-radius: 60px;
  -moz-border-radius: 60px;
  -ms-border-radius: 60px;
  -o-border-radius: 60px;
  border-radius: 60px;
  -webkit-transition: background 0.4s;
  -moz-transition: background 0.4s;
  -o-transition: background 0.4s;
  transition: background 0.4s;
}
input.cmn-toggle-round-flat + label:after {
  top: 4px;
  left: 4px;
  bottom: 4px;
  width: 52px;
  background-color: #dddddd;
  -webkit-border-radius: 52px;
  -moz-border-radius: 52px;
  -ms-border-radius: 52px;
  -o-border-radius: 52px;
  border-radius: 52px;
  -webkit-transition: margin 0.4s, background 0.4s;
  -moz-transition: margin 0.4s, background 0.4s;
  -o-transition: margin 0.4s, background 0.4s;
  transition: margin 0.4s, background 0.4s;
}
input.cmn-toggle-round-flat:checked + label {
  background-color: #8ce196;
}
input.cmn-toggle-round-flat:checked + label:after {
  margin-left: 60px;
  background-color: #8ce196;
}

/* ============================================================
  SWITCH 3 - YES NO
============================================================ */
input.cmn-toggle-yes-no + label {
  padding: 2px;
  width: 120px;
  height: 60px;
}
input.cmn-toggle-yes-no + label:before, input.cmn-toggle-yes-no + label:after {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  color: #fff;
  font-family: "Roboto Slab", serif;
  font-size: 20px;
  text-align: center;
  line-height: 60px;
}
input.cmn-toggle-yes-no + label:before {
  background-color: #dddddd;
  content: attr(data-off);
  -webkit-transition: -webkit-transform 0.5s;
  -moz-transition: -moz-transform 0.5s;
  -o-transition: -o-transform 0.5s;
  transition: transform 0.5s;
  -webkit-backface-visibility: hidden;
  -moz-backface-visibility: hidden;
  -ms-backface-visibility: hidden;
  -o-backface-visibility: hidden;
  backface-visibility: hidden;
}
input.cmn-toggle-yes-no + label:after {
  background-color: #8ce196;
  content: attr(data-on);
  -webkit-transition: -webkit-transform 0.5s;
  -moz-transition: -moz-transform 0.5s;
  -o-transition: -o-transform 0.5s;
  transition: transform 0.5s;
  -webkit-transform: rotateY(180deg);
  -moz-transform: rotateY(180deg);
  -ms-transform: rotateY(180deg);
  -o-transform: rotateY(180deg);
  transform: rotateY(180deg);
  -webkit-backface-visibility: hidden;
  -moz-backface-visibility: hidden;
  -ms-backface-visibility: hidden;
  -o-backface-visibility: hidden;
  backface-visibility: hidden;
}
input.cmn-toggle-yes-no:checked + label:before {
  -webkit-transform: rotateY(180deg);
  -moz-transform: rotateY(180deg);
  -ms-transform: rotateY(180deg);
  -o-transform: rotateY(180deg);
  transform: rotateY(180deg);
}
input.cmn-toggle-yes-no:checked + label:after {
  -webkit-transform: rotateY(0);
  -moz-transform: rotateY(0);
  -ms-transform: rotateY(0);
  -o-transform: rotateY(0);
  transform: rotateY(0);
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="switch" id="switch">
  <input id="cmn-toggle-1" class="cmn-toggle cmn-toggle-round" type="checkbox" checked data-value="one" >
  <label for="cmn-toggle-1"></label>
</div>

<br>

<div class="switch" id="switch">
  <input id="cmn-toggle-2" class="cmn-toggle cmn-toggle-round" type="checkbox" data-value="two">
  <label for="cmn-toggle-2"></label>
</div>

Answer 2

给定的 ID 名称必须是唯一的。

请查看更新后的JSFiddle。