如何使用活动类找到以前的.multiselect类

Question

I have a list of select box suppose .multiselect is parent of all elements under it (ie <li> ) when user select one option .active class is added to it.

 $(".multiselect-container.dropdown-menu li").each(function(){ if($(this).hasClass("active")){ var TypeSubId = $(this).find("input").val(); var TypeID = $(this).prev(".multiselect").find("input").val(); } }); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <ul class="multiselect-container dropdown-menu"> <li class="multiselect"><input type="checkbox" /></li> <li><input type="checkbox" /></li> <li><input type="checkbox" /></li> <li><input type="checkbox" /></li> <li class="active"><input type="checkbox" /></li> <li><input type="checkbox" /></li> <li><input type="checkbox" /></li> <li class="multiselect"><input type="checkbox" /></li> <li><input type="checkbox" /></li> <li><input type="checkbox" /></li> <li><input type="checkbox" /></li> <li class="active"><input type="checkbox" /></li> <li><input type="checkbox" /></li> </ul> 

So Now I need help in finding TypeID (value in JS code). I want to find value of input checkbox of first .multiselect above .active .

Answer 1

使用以下代码查找多选

  $(this).prevAll("li.multiselect:first").find("input").val()