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How to delete a table in javascript

coldplay.xixi

Apr 08, 2021 pm 03:30 PM

javascript

Javascript implements the method of deleting a table: first create a node; then remove the child node tr under the table and delete the rows of the table. The code is [table.removeChild(this.parentNode.parentNode)].

How to delete a table in javascript

The operating environment of this tutorial: Windows 7 system, JavaScript version 1.8.5, DELL G3 computer.

Javascript method to delete a table:

Rendering:

How to delete a table in javascript

The code is as follows:

<!DOCTYPE html>
<html>
 <head>
 <meta charset="UTF-8">
 <title></title>
 <style type="text/css">
  #box{
  margin:0 auto;
  background:yellow;
  border:4px double #808080;
  width:600px;
  text-align:center;
  }
  #box input{
  width:130px;
  }
  #box table{
  margin:5px 0;
  background:lawngreen;
  }
 </style>
 <script type="text/javascript">
  onload = function(){
  var aInput = document.getElementsByTagName(&#39;input&#39;);
  var bTn = document.getElementById(&#39;btn&#39;);
  var table = document.getElementsByTagName(&#39;table&#39;)[0];
//  
 
  //方法一
//  bTn.onclick = function(){
//   
//   var oTr=document.createElement(&#39;tr&#39;);//创建节点
//   table.appendChild(oTr);//创建table的子节点tr
 
//   var oTd=document.createElement(&#39;td&#39;);//创建节点
//   oTd.innerHTML=aInput[0].value;//给表格赋内容
//   oTr.appendChild(oTd);//创建tr的子节点td
//   
//   var oTd=document.createElement(&#39;td&#39;);//创建节点
//   oTd.innerHTML=aInput[1].value;//给表格赋内容
//   oTr.appendChild(oTd);//创建tr的子节点td
//   
//   var oTd=document.createElement(&#39;td&#39;) ;//创建节点
//   oTd.innerHTML=aInput[2].value;//给表格赋内容
//   oTr.appendChild(oTd);//创建tr的子节点td
 
//   var oTd=document.createElement(&#39;td&#39;) ;//创建节点
//   oTd.innerHTML=&#39;<a href="javascript:;" rel="external nofollow" rel="external nofollow" >删除</a>&#39;;//给表格赋内容
//   oTr.appendChild(oTd);//创建tr的子节点td
 
//   oTd.getElementsByTagName(&#39;a&#39;)[0].onclick=function(){
//   table.removeChild(this.parentNode.parentNode);
//   //移除table下面的子节点tr
//   }//删除表格行
 
  //方法二
  bTn.onclick = function(){
 
   var oTr=document.createElement(&#39;tr&#39;);//创建节点
   table.appendChild(oTr);//创建table的子节点tr
   for(var i = 0; i < aInput.length-1; i ++){
   var oTd=document.createElement(&#39;td&#39;);//创建节点
   oTd.innerHTML=aInput[i].value;//给表格赋内容
   oTr.appendChild(oTd);//创建tr的子节点td
   }
 
   var oTd=document.createElement(&#39;td&#39;) ;//创建节点
   oTd.innerHTML=&#39;<a href="javascript:;" rel="external nofollow" rel="external nofollow" >删除</a>&#39;;//给表格赋内容
   oTr.appendChild(oTd);//创建tr的子节点td
 
   oTd.getElementsByTagName(&#39;a&#39;)[0].onclick=function(){
   table.deleteRow(1);
   }
  }
  }  
 </script>
 </head>
 <body>
 <div id="box">
  ID:<input type="text" name="" id="" value="" />
  姓名：<input type="text" name="" id="" value="" />
  电话：<input type="text" name="" id="" value="" />
  <input type="button" name="btn" id="btn" value="保存" style="width:50px;"/>
  <table border="" cellspacing="" cellpadding="" width="600px" >
  <tr>
  <td>Id</td>
  <td>name</td>
  <td>tal</td>
  <td>操作</td>
  </tr>  
  </table>
 </div>
 
 </body>
</html>

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