HTML | DOM normalize() 方法

HTML 中的normalize() 方法用于将相邻的文本节点与第一个文本节点合并，并清除空节点。 normalize() 方法不需要任何参数。

句法：

node.normalize()

示例 1：

  

    
        DOM normalize Method
    

  

  
    GeeksforGeeks
    DOM normalize() Method
  
    
        Normalize
    
  
    
        Add node
    
    There are  child nodes.
  
    
        // onload is used to reset the child text nodes
        // count when page is refreshed and addNode
        // function is used for addNode button
        function addNode() {
  
            // Creating a text node named "Normalize"
            var text_node = 
                document.createTextNode("Normalize ");
  
            // Using variable text_body to 
            //access the whole body
            var text_body = document.body;
  
            // Adding text node to the end of the body 
            text_body.appendChild(text_node);
  
            // Count is used to store number of child text
            // nodes present in the document
            var text_node = 
                document.getElementById("count");
  
            // innerHTML fetches value of text_node and 
            // update it with new value.
            text_node.innerHTML = 
              text_body.childNodes.length;
        }
  
        // normalizeNode function is used to Normalize button
        function normalizeNode() {
            document.normalize();
            var text_body = document.body;
            var node_count = 
                document.getElementById("count");
            node_count.innerHTML =
                  text_body.childNodes.length;
        }
    

  

输出：

支持的浏览器： DOM normalize() 方法支持的浏览器如下：

• 谷歌浏览器
• IE浏览器
• 火狐
• 歌剧
• 苹果浏览器