04 删(removechild)

removechild 从父节点上删除某个子节点

<div id="app">
  <p>one</p>
  <p id="two">two</p>
  <button id="btn">点击消失</button>
</div>
  <!-- removeChild 从父节点上删除某个子节点
  parentElment.removeChlid(childElement) 
 remove();
-->
<script>
    var app=document.getElementById("app");
    var two=document.getElementById("two");
    var btn=document.getElementById("btn");
    btn.onclick=function(){
        app.removeChild(two);
    }

remove() 方法

    <div id="app">
        <p>one</p>
        <p id="two">two</p>
        <button id="btn">点击消失</button>
      </div>
      <script>
var app=document.getElementById("app");
    var two=document.getElementById("two");
    var btn=document.getElementById("btn");
    btn.onclick=function(){
            two.remove();
    }