您如何仅将div的重孙子项的内容设置为“”？

Question

You have a html like this 你有一个这样的html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">    
<html>         
  <head>           
    <meta http-equiv="content-type" content="text/html; charset=utf-8">           
    <title>        
    </title>         
  </head>         
  <body>        
    <div>          
      <div>          
        How are you?           
      </div>          
      <div>            
        <div>              
          <div>              
            <p>                
              Hello               
            </p>              
          </div>            
        </div>          
      </div>        
    </div>        
    <div>        
    </div>         
  </body>    
</html>

How do you set only the content of the "nestedmost" div to '' in a userscript that works with most pages? 如何在适用于大多数页面的用户脚本中仅将“最嵌套的” div的内容设置为“”？ In this context, How are you stays but <p>Hello</p> is removed. 在这种情况下， How are you但<p>Hello</p>被删除了。

Context: the goal is to automatically filter forum posts(ie the smallest unit) or articles that contain certain keywords but not the whole page because somewhere nested there are keywords. 上下文：目标是自动过滤论坛帖子（即最小的单元）或包含某些关键字但不包含整个页面的文章，因为嵌套的某处有关键字。

Answer 1

It's not entirely clear to me what you are looking for, but here's a function that function that finds the most deep div in the document body tree: 对我来说，您要查找的内容还不是很清楚，但是下面的函数可以在文档正文树中找到最深的div ：

function find_deepest_div() {
    var deepest_div;
    var deepest_div_depth = -1;
    function search(current, depth) {
        if (current.tagName === "DIV" && depth > deepest_div_depth) {
            deepest_div = current;
            deepest_div_depth = depth;
        }
        for (var i = 0, len = current.children.length; i < len; i++)
            search(current.children[i], depth + 1);
    }
    search(document.body, 0);
    return deepest_div;
}

You can use it to delete the contents of the deepest div like so: 您可以使用它删除最深的div的内容，如下所示：

var deepest_div = find_deepest_div();
if (deepest_div) deepest_div.innerHTML = "";

您如何仅将div的重孙子项的内容设置为“”？

问题描述

1 个解决方案

解决方案1
1 已采纳 2017-12-09 21:10:05

您如何仅将div的重孙子项的内容设置为“”？

问题描述

1 个解决方案

解决方案1 1 已采纳 2017-12-09 21:10:05

解决方案1
1 已采纳 2017-12-09 21:10:05