jquery找到最近没有上课的兄弟姐妹 [英] jquery find closest previous sibling that does not have class

问题描述

示例HTML：

我很遗憾地尝试使用jQuery的slide类不包含子 >

 < section id =p1class =slide>< / section> 
< section id =p2class =slide>< / section> 
< section id =p3class =slide>< / section> <！ - 我正在尝试获得这个ELEM  - > 
< section id =p31class =slide subsection>< / section> 
< section id =p32class =slide subsection>< / section> <！ - 我在这里 - > 
< section id =p4class =slide>< / section> 
  

我尝试过：（其中$ subsection是上面提到的元素）

  var $ slide = $ subsection.prev（'。slide'）。not（'。subsection'）; 
 var $ slide = $ subsection.prev（'。slide：not（。subsection）'）; 
 var $ slide = $ subsection.prev（'。slide'）。not（[class ='subsection']）; 
 var $ slide = $ subsection.prev（'。slide：not（[class =subsection]）'）; 
  

现在我发现prev（）只选择一个以前的elem然后停止，但prevUntil doesn不，也可以工作？

  var $ slide = $ subsection.prevUntil（'。slide' ）; 
  

我也尝试过：

  var $ slide = $ subsection.prevAll（'。slide'）。not（'。subsection'）; 
  

但这会让我得到第一个id为id的幻灯片元素。

如果有任何人有任何提示，我会很感激...
有谁可以阻止我去cray cray？ 8 |

解决方案

尝试这样：

 code> var a = $（＃p32）。prevAll（。slide）。not（。subsection）。 
 alert（$（a）.text（））; 
  

Fiddle here。

I am stumped at trying to get the closest previous element with class 'slide' that does NOT contain class 'subsection' using jQuery

Sample HTML:

<section id="p1" class="slide"></section>
<section id="p2" class="slide"></section>
<section id="p3" class="slide"></section> <!--I AM TRYING TO GET THIS ELEM -->
<section id="p31" class="slide subsection"></section>
<section id="p32" class="slide subsection"></section> <!--I AM HERE -->
<section id="p4" class="slide"></section>

I have tried: (where $subsection is the element indicated above)

var $slide = $subsection.prev('.slide').not('.subsection');
var $slide = $subsection.prev('.slide:not(".subsection")');
var $slide = $subsection.prev('.slide').not("[class='subsection']");
var $slide = $subsection.prev('.slide:not([class="subsection"])');

Now I found out that prev() only selects a single previous elem and then stops, but prevUntil doesn't work either?

var $slide = $subsection.prevUntil('.slide').not('.subsection');

I also tried:

var $slide = $subsection.prevAll('.slide').not('.subsection');

but this gets me the very first slide element with id p1.

If anyone has any tips I'd appreciate it... Can anyone stop me going cray cray? 8-|

解决方案

Try this:

var a = $("#p32").prevAll(".slide").not(".subsection").first();
alert($(a).text());

Fiddle here.

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