js implements web page collection function_javascript skills-JS Tutorial-php.cn

js implements web page collection function_javascript skills

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Release： 2016-05-16 15:25:14

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The example in this article describes the method of dynamically adding or deleting URLs using js. Share it with everyone for your reference, the details are as follows:

Operation rendering:

The specific code is as follows

<html>
 <head>
 <title>脚本之家</title>
 <meta charset="utf-8">
 <script>
 function add(){
  var name = document.getElementById("name").value;
  var url = document.getElementById("url").value; 
  var list = document.getElementById("list");
  //动态创建节点
  var link = document.createElement("a");
  link.setAttribute("href",url); //设置属性
  link.innerHTML = name; 
  //增加删除的按钮
  var button = document.createElement("input");
  button.setAttribute("type","button");
  button.value = "删除";
  /**
  (1).event对象表示对象的状态，提供了对象的相关细节,IE浏览器被
  存储在 Window 对象的 event 属性中。
  (2).srcElement属性是对于生成事件的 Window 对象、Document 对象或 Element 对象的引用 
  (3).parentNode 属性返回指定节点的父节点。
  (4).removeChild() 方法删除子节点。
  
  **/
  button.onclick = function(event){
  var target;
  if (event == null)
  {
   target = window.event.srcElement;
  }else{
   target = event.target;
  }
  var div = target.parentNode;
  div.parentNode.removeChild(div);
  alert("删除成功");
  }
  //添加生成的内容
  var div = document.createElement("div");
  div.appendChild(button);
  div.insertBefore(link,button);
  list.appendChild(div);
  
  }
 </script>
 </head>
 <body>
 <hr>
 站点名称：<input type="text" name="name" id="name">
 网址：<input type="text" name="url" id="url">
 <input type="button" value="增加" onclick="add()">
 <div id="list">
 </div>
 </body>
</html>

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I hope this article will be helpful to everyone in JavaScript programming.