如何从切换按钮是/否获取值并在按钮活动中显示检索数据

Question

大家好，

下面是我的代码来显示切换按钮是/否。我想要做的是基于用户选择我想检索数据。如果他们选择是切换按钮 javascript 变量应该有是字符串，否则没有字符串。

HTML代码

<label class="switch">
  <input class="switch-input" type="checkbox" />
  <span class="switch-label" data-on="Yes" data-off="No"></span> 
  <span class="switch-handle"></span> 
 </label>

CSS

  .switch {
  position: relative;
  display: block;
  vertical-align: top;
  width: 100px;
  height: 30px;
  padding: 3px;
  margin: 0 10px 10px 0;
  background: linear-gradient(to bottom, #eeeeee, #FFFFFF 25px);
  background-image: -webkit-linear-gradient(top, #eeeeee, #FFFFFF 25px);
  border-radius: 18px;
  box-shadow: inset 0 -1px white, inset 0 1px 1px rgba(0, 0, 0, 0.05);
  cursor: pointer;
}
.switch-input {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
}
.switch-label {
  position: relative;
  display: block;
  height: inherit;
  font-size: 10px;
  text-transform: uppercase;
  background: #eceeef;
  border-radius: inherit;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.12), inset 0 0 2px rgba(0, 0, 0, 0.15);
}
.switch-label:before, .switch-label:after {
  position: absolute;
  top: 50%;
  margin-top: -.5em;
  line-height: 1;
  -webkit-transition: inherit;
  -moz-transition: inherit;
  -o-transition: inherit;
  transition: inherit;
}
.switch-label:before {
  content: attr(data-off);
  right: 11px;
  color: #aaaaaa;
  text-shadow: 0 1px rgba(255, 255, 255, 0.5);
}
.switch-label:after {
  content: attr(data-on);
  left: 11px;
  color: #FFFFFF;
  text-shadow: 0 1px rgba(0, 0, 0, 0.2);
  opacity: 0;
}
.switch-input:checked ~ .switch-label {
  background: #0088cc;
  border-color: #0088cc;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.15), inset 0 0 3px rgba(0, 0, 0, 0.2);
}
.switch-input:checked ~ .switch-label:before {
  opacity: 0;
}
.switch-input:checked ~ .switch-label:after {
  opacity: 1;
}
.switch-handle {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 28px;
  height: 28px;
  background: linear-gradient(to bottom, #FFFFFF 40%, #f0f0f0);
  background-image: -webkit-linear-gradient(top, #FFFFFF 40%, #f0f0f0);
  border-radius: 100%;
  box-shadow: 1px 1px 5px rgba(0, 0, 0, 0.2);
}
.switch-handle:before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  margin: -6px 0 0 -6px;
  width: 12px;
  height: 12px;
  background: linear-gradient(to bottom, #eeeeee, #FFFFFF);
  background-image: -webkit-linear-gradient(top, #eeeeee, #FFFFFF);
  border-radius: 6px;
  box-shadow: inset 0 1px rgba(0, 0, 0, 0.02);
}
.switch-input:checked ~ .switch-handle {
  left: 74px;
  box-shadow: -1px 1px 5px rgba(0, 0, 0, 0.2);
}

/* Transition
========================== */
.switch-label, .switch-handle {
  transition: All 0.3s ease;
  -webkit-transition: All 0.3s ease;
  -moz-transition: All 0.3s ease;
  -o-transition: All 0.3s ease;
}

我从http://www.htmllion.com/css3-toggle-switch-button.html重新释放了这段代码

下面是输出

我试过这个jquery来得到：

 alert($(this).attr("data-on")); 

我不知道如何获取选定的按钮数据，类似地，在获取数据后，它将存储在数据库中，我想从数据库中检索是或否，它应该被选择为默认值，这将从数据库中检索。我该怎么做。结果我在 jquery 中尝试过的返回未定义的值。请任何人帮我解决这个问题。提前致谢。

Answer 1

尝试这个：

(function() {
  $(document).ready(function() {
    $('.switch-input').on('change', function() {
      var isChecked = $(this).is(':checked');
      var selectedData;
      var $switchLabel = $('.switch-label');
      console.log('isChecked: ' + isChecked); 

      if(isChecked) {
        selectedData = $switchLabel.attr('data-on');
      } else {
        selectedData = $switchLabel.attr('data-off');
      }

      console.log('Selected data: ' + selectedData);

    });
  });

})();

参考：http : //jsbin.com/zizuxo/edit?js,console,output