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javascript - 如何解除绑定(bind)此 .click 操作?

转载 作者:行者123 更新时间:2023-11-28 15:29:29 25 4
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我正在尝试实现此开关功能,以便当已单击打开按钮并且用户单击关闭时,打开按钮 CSS 恢复正常。我还希望将开关设置为默认设置。我也尝试过,但没有成功。

HTML:

<!DOCTYPE HTML>
<html>

<head>

<title>Toggleswitch</title>
<link rel="stylesheet" type="text/css" href="main.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src='script.js' type='text/javascript'></script>

</head>
<body>

<div class="switch-container">
<button id="darkmodeon">ON</button>
<button id="darkmodeoff">OFF</button>

</div>

</body>
</html>

CSS:

body{
background-color: black;
}

.switch-container{
display: flex;
justify-content: space-between;
background-color: white;
border-radius: 50px;
padding: 5px;
width: 135px;

}

#darkmodeon{
width: 50px;
height: 50px;
border-radius: 100%;
border: none;
color: #a5a5a5;
font-family:"calibri light";
font-size: 15px;
font-weight: bold;
background-color: #e8e8e8;
}

#darkmodeoff{
width: 50px;
height: 50px;
border-radius: 100%;
border: none;
color: #a5a5a5;
font-family:"calibri light";
font-size: 15px;
font-weight: bold;
background-color: #e8e8e8;
}

jQuery:

$(document).ready(function(){

var darkon = "#darkmodeon";
var darkoff = "#darkmodeoff";

$(darkon).click(function(){
$(this).css({
"background-color": "#66e86a",
"color": "white" ,
"transition": "all 0.3s ease"
});
});

$(darkoff).click(function(){
$(this).css({
"background-color": "#66e86a",
"color": "white" ,
"transition": "all 0.3s ease"
});
$(this).unbind('click', darkon);
});



});

最佳答案

.click(handler) 只是 .on('click', handler) 的替代品。要在任何元素上删除之前绑定(bind)到任何事件的任何处理程序,请使用:

$(selector).off('eventName', handler)

例子:

var whatever = function(){
// code here
};
$(selector).on('click', whatever); // or $(selector).click(handler);
$(selector).off('click', whatever);

虽然举例说明了如何解除绑定(bind),但上面的例子并没有做太多,因为函数在绑定(bind)后立即解除绑定(bind)。通常,您会根据应用的逻辑解除绑定(bind)。

例如,如果您想在第一次click 之后取消绑定(bind)click,通常您会在绑定(bind)内使用.off()功能:

var whatever = function(){
$(this).off('click', whatever);
// code that only runs on first click.
};
$(selector).on('click', whatever); // or $(selector).click(handler);

至于你的例子,你为什么不在他们的 parent 身上切换一个类(class)?

$('.parent button').on('click', function(){
$(this).closest('.parent').toggleClass('on');
})
/*.parent button, 
.parent.on button:first-child {
display: none;
}
.parent button:first-child,
.parent.on button:last-child {
display: inline;
}*/

/* if you don't want/like the animation, just use the simple `display` switch above */

.parent {
position: relative;
display: inline-block;
}
.parent button {
transition: opacity .2s linear, transform .3s cubic-bezier(.4,0,.2,1);
}
.parent.on button:first-child {
opacity: 0;
transform: translateX(-100%);
}
.parent button:last-child {
position: absolute;
left: 0;
top: 0;
opacity: 0;
transform: translateX(100%)
}
.parent button:first-child,
.parent.on button:last-child {
opacity: 1;
transform: translateX(0)
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div class="parent">
<button>On</button>
<button>Off</button>
</div>

关于javascript - 如何解除绑定(bind)此 .click 操作?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/44893908/

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