jquery - 如何调用之前被删除的类

Question

之前使用 jquery 删除的一些 css 类，例如。

html

<div class="one someclass"></div>
<div class="two otherclass"></div>
<div class="one otherclass"></div>
<div class="two someclass"></div>

jquery

$('div').removeClass();

这将删除所有类。

现在我想捕获之前应用的特定类的类。

    $('div').addClass('someclass') 
      /* to which previously it was applied someclass in the above html
         that is add someclass to first class - one and last class -two*/
    $('div').addClass('otherclass') 
      /* to which previously it was applied otherclass in the above html
          that is add otherclass to first class - two and last class -one*/

编辑

即使是这样怎么办

<div class="one someclass"></div>
<div class="otherclass two"></div>
<div class="one otherclass"></div>
<div class="someclass one"></div>

Answer 1

删除之前保存它。

var classes = $("div")[0].className;

$('div').removeClass();

// ... Some Code Later

$('div').addClass(classes);

<小时/>

逐字解决您的问题，您可以将所有具有 someClass 的类保存为:

function saveClasses(className) {
      return $(className)[0].className.split(/\s+/)
           .filter(function(c) { return c!=className; }).join(" ");
}

var classes = saveClasses(".someClass");

var $div = $('.someClass').removeClass();

// Some Code Later

$div.addClass(classes);

这将添加回除 someClass 之外的所有类。