jQuery 在jquery中按类获取文本
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get text by class in jquery
提问by hlapointe
I want get testinside this example. Why it doesn't work?
我想test进入这个例子。为什么它不起作用？
HTML
HTML
<div id="partTypes">
<div class="partType">
<div class="details"> <span class="name">test</span>
</div>
<div class="buttons">
<input class="addCart" type="button" value="click me" />
</div>
</div>
</div>
JAVASCRIPT
爪哇脚本
$(document).ready(function () {
$('input.addCart').live('click', function () {
var $partType = $(this).closest('div.partType');
alert($partType.filter('span.name').text());
});
});
回答by j08691
Change:
改变：
alert($partType.filter('span.name').text());
to:
到：
alert($partType.find('span.name').text());
Ideally you also want to stop using .live()and move to .on()(since live was deprecated awhile ago and removed in 1.9) so the whole block would be:
理想情况下，您还希望停止使用.live()并移至.on()（因为 live 不久前已弃用并在 1.9 中删除），因此整个块将是：
$('input.addCart').on('click', function () {
var $partType = $(this).closest('div.partType');
alert($partType.find('span.name').text());
});
回答by Eyal
Try this:
尝试这个：
$(document).ready(function () {
$('input.addCart').click(function () {
var $partType = $(this).closest('div.partType');
alert($partType.find('span.name').text());
});
});
回答by Arun P Johny
.filter()will apply the filter to the passed set of elements, where as you want to look at the descendent elements for which you need to use find()
.filter()将过滤器应用于传递的元素集，您可以在其中查看需要使用的后代元素 find()
$(document).ready(function () {
$('input.addCart').live('click', function () {
var $partType = $(this).closest('div.partType');
alert($partType.find('span.name').text());
});
});
.filter(): Reduce the set of matched elements to those that match the selector or pass the function's test.
.filter()：将匹配元素集减少到与选择器匹配或通过函数测试的元素集。
.find(): Get the descendants of each element in the current set of matched elements, filtered by a selector, jQuery object, or element.
.find()：获取当前匹配元素集合中每个元素的后代，由选择器、jQuery 对象或元素过滤。
