我需要做的是jQuery.one
使用委托获得每个匹配元素的功能。
如您所见,单击“Baz”或“Bat”的链接会多次附加“(已删除)”。另一方面,单击“Foo”的链接只会执行一次代码,但也会为“Bar”禁用它(反之亦然)。
小提琴:http: //jsfiddle.net/JcmpN/
我想要发生的是,单击其中任何一个都会执行该元素的处理程序,但会使其他元素保持原样,直到它们也被单击一次。
HTML:
<ul id="product-list">
<li>
<span class="product-name">Foo</span>
<a href="#remove-foo" class="removeWithOne">Remove Product</a>
</li>
<li>
<span class="product-name">Bar</span>
<a href="#remove-bar" class="removeWithOne">Remove Product</a>
</li>
<li>
<span class="product-name">Baz</span>
<a href="#remove-baz" class="removeWithOn">Remove Product</a>
</li>
<li>
<span class="product-name">Bat</span>
<a href="#remove-bat" class="removeWithOn">Remove Product</a>
</li>
</ul>
jQuery:
// this version removes the handler as soon as any instance is clicked!
$('#product-list').one('click.productRemoveOne', 'a.removeWithOne', function (e) {
var $this = $(this),
$name = $this.siblings('span.product-name');
e.preventDefault();
$name.text($name.text() + ' (removed)');
});
// this one executes the handler multiple times!
$('#product-list').on('click.productRemoveOn', 'a.removeWithOn', function (e) {
var $this = $(this),
$name = $this.siblings('span.product-name');
e.preventDefault();
$name.text($name.text() + ' (removed)');
});