我正在开发一个具有“已保存”和“已完成”模块的小部件。当我删除元素时,它会从 dom 中删除/淡化它,但是当我将其标记为完成时,它会将其克隆到已完成的选项卡。这工作很棒,但顶部括号内的数字不适合我。这样做的更好方法是什么?我可能想多了。
我正在使用 length
来捕获父级中 div
的数量。这很好用。但是当我 fadeout
(删除)dom 中的一个元素时,计数器/长度不会改变。当我 clone
元素到完成的选项卡时也不会。
这是我设置的 jsfiddle 文件。
http://jsfiddle.net/breezy/jvdnbw4q/
这是我的 jQuery
$(document).foundation();
$('.removed-saved-tip').click(function(e){
$(this).closest('.saved-tip').fadeOut();
e.preventDefault();
});
$('.saved-tip-done').click(function(e){
$(this).toggleClass('marked-done');
e.preventDefault();
$(this).closest('.saved-tip').clone().appendTo('#panel2');
});
$('#panel1').each(function() {
var n = $(this).children('.saved-tip').length;
$(".tab-title:first a").text("Saved (" + n + ")");
});
$('#panel2').each(function() {
var n = $(this).children('.saved-tip').length;
$(".tab-title:last a").text("Completed (" + n + ")");
});
最佳答案
您需要调用事件处理程序内部的计数逻辑以进行标记和删除。
// Tabs
$(document).foundation();
$('.removed-saved-tip').click(function (e) {
$(this).closest('.saved-tip').addClass('removed').fadeOut();
e.preventDefault();
updateCount();
});
$('.saved-tip-done').click(function (e) {
$(this).toggleClass('marked-done');
e.preventDefault();
$(this).closest('.saved-tip').clone().appendTo('#panel2');
updateCount();
});
updateCount();
function updateCount() {
$('#panel1').each(function () {
var n = $(this).children('.saved-tip').filter(function() {
return !$(this).hasClass('removed');
}).length;
$(".tab-title:first a").text("Saved (" + n + ")");
});
$('#panel2').each(function () {
var n = $(this).children('.saved-tip').filter(function() {
return !$(this).hasClass('removed');
}).length;
$(".tab-title:last a").text("Completed (" + n + ")");
});
}
.tabs-content {
margin: 10px auto 0 auto;
}
.tabs-content .content {
background: #fff;
}
.print-option {
background: #fbf7cc;
padding: 5px 15px;
margin: 0;
}
.print-option h4 {
font-size: 14px;
}
.saved-tip {
padding: 10px 15px;
overflow: hidden;
cursor: pointer;
}
.saved-tip:hover {
background: #efefef;
}
.saved-tip .saved-tip-icon {
float: left;
margin: 0 10px 0 0;
}
.saved-tip h5 {
color: #107CB2;
font-size: 13px;
float: left;
}
.saved-tip .saved-tip-options {
float: right;
}
.saved-tip .saved-tip-options a {
color: #676767;
padding: 0 5px;
border: 1px solid #dedede;
border-radius: 3px;
display: inline-block;
}
.saved-tip .saved-tip-options i {
font-size: 14px;
}
.saved-tip a.marked-done {
color: #107CB2;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/foundation/5.5.2/js/foundation/foundation.tab.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css" />
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/foundation/5.5.2/js/foundation.min.js"></script>
<link rel="stylesheet" href="http://cdn.foundation5.zurb.com/foundation.css" />
<ul class="tabs" data-tab>
<li class="tab-title active"><a href="#panel1">Saved</a>
</li>
<li class="tab-title"><a href="#panel2">Completed</a>
</li>
</ul>
<div class="tabs-content">
<div class="print-option">
<h4>Share these tips with your home. <a href="#">Print now</a></h4>
</div>
<div class="content active" id="panel1">
<div class="saved-tip">
<img class="saved-tip-icon" src="http://placehold.it/20x20">
<h5>Tip title</h5>
<div class="saved-tip-options"> <a class="saved-tip-done" href="#"><i class="fa fa-check"></i></a>
<a class="removed-saved-tip" href="#"><i class="fa fa-times"></i></a>
</div>
</div>
<div class="saved-tip">
<img class="saved-tip-icon" src="http://placehold.it/20x20">
<h5>Tip title</h5>
<div class="saved-tip-options"> <a class="saved-tip-done" href="#"><i class="fa fa-check"></i></a>
<a class="removed-saved-tip" href="#"><i class="fa fa-times"></i></a>
</div>
</div>
</div>
<!-- eo / panel1 -->
<div class="content" id="panel2">
<div class="saved-tip">
<img class="saved-tip-icon" src="http://placehold.it/20x20">
<h5>Tip title</h5>
<div class="saved-tip-options"> <a class="saved-tip-done" href="#"><i class="fa fa-check"></i></a>
<a class="removed-saved-tip" href="#"><i class="fa fa-times"></i></a>
</div>
</div>
<div class="saved-tip">
<img class="saved-tip-icon" src="http://placehold.it/20x20">
<h5>Tip title</h5>
<div class="saved-tip-options"> <a class="saved-tip-done" href="#"><i class="fa fa-check"></i></a>
<a class="removed-saved-tip" href="#"><i class="fa fa-times"></i></a>
</div>
</div>
<div class="saved-tip">
<img class="saved-tip-icon" src="http://placehold.it/20x20">
<h5>Tip title</h5>
<div class="saved-tip-options"> <a class="saved-tip-done" href="#"><i class="fa fa-check"></i></a>
<a class="removed-saved-tip" href="#"><i class="fa fa-times"></i></a>
</div>
</div>
</div>
<!-- eo / panel2 -->
</div>
<!-- eo // tabs content -->
</div>
关于javascript - 从dom中删除元素时如何更改计数器/长度,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32253676/