我有一个开关,checked
我用 jQuery 调用它的状态。每次我单击从未选中到选中的切换时,控制台都会记录"do this!"
两次。为什么这个函数会触发两次,让它触发一次的解决方法是什么?
$("#my-toggle").bind("transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd", function() {
if (document.getElementById('my-checkbox').checked) {
console.log("do this!")
}
});
.switch {
position: absolute;
top: 15%;
display: inline-block;
width: 60px;
height: 34px;
}
.switch input {
display: none;
}
.slider {
position: absolute;
cursor: pointer;
top: 0;
left: 0;
right: 0;
bottom: 0;
background-color: #ccc;
-webkit-transition: .4s;
transition: .4s;
}
.slider:before,
.slider .number {
position: absolute;
content: "";
height: 26px;
width: 26px;
left: 4px;
bottom: 4px;
background-color: white;
-webkit-transition: .4s;
transition: .4s;
}
.slider .number {
background: none;
font-size: 14px;
left: 9px;
top: 9px;
}
input:checked+.slider {
background-color: #2196F3;
}
input:focus+.slider {
box-shadow: 0 0 1px #2196F3;
}
input:checked+.slider:before,
input:checked+.slider .number {
-webkit-transform: translateX(26px);
-ms-transform: translateX(26px);
transform: translateX(26px);
}
/* Rounded sliders */
.slider.round {
border-radius: 34px;
}
.slider.round:before {
border-radius: 50%;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<label class="switch">
<input type="checkbox" id="my-checkbox">
<span class="slider round" id="my-toggle"></span>
</label>
我的最终 HTML 看起来像这样,事件触发了 3 次:
<label class="switch">
<input type="checkbox" id="my-checkbox">
<span class="slider round" id="my-toggle">
<span class="number">00</span>
</span>
</label>