实例 jQuery 使用 DOM 元素返回 span 和 div 之间的所有祖先

x
 
<!DOCTYPE html>
<html>
<head>
<style>
.ancestors * { 
  display: block;
  border: 2px solid lightgrey;
  color: lightgrey;
  padding: 5px;
  margin: 15px;
}
</style>
<script src="https://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>
<script>
$(document).ready(function(){
  var DOM = document.getElementsByClassName("greatgp");
  $(".child").parentsUntil(DOM).css({"color": "red", "border": "2px solid red"});
});
</script>
</head>
<body class="ancestors"> body (great-great-grandparent)
  <div style="width:500px;" class="greatgp">div (great-grandparent)
    <ul>ul (grandparent)  
      <li>li (direct parent)
        <span class="child">span</span>
      </li>
    </ul>   
  </div>
</body>
<!-- In this example, we use the DOM to select all ancestor elements between the span element with class name "child", and the div element with class name "ancestors". -->
</html>
                    

输出结果