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How to add child nodes in jquery

Nov 16, 2021 pm 02:49 PM

jquery

Add method: 1. Use the "parent node.append(child node)" statement; 2. Use the "parent node.prepend(child node)" statement; 3. Use "child node.appendTo(parent node) )" statement; 4. Use the "$(child node).prependTo(parent node)" statement.

How to add child nodes in jquery

The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.

In jquery, if you want to add child nodes to the parent node, there are many methods:

append(): to the "end" inside the selected element "Insert content.
appendTo(): Insert content "at the end" inside the selected element.
prepend(): Insert content to the "beginning" inside the selected element.
prependTo(): Insert content to the "beginning" inside the selected element.

Example:

  <script>
    $(function () {
      //1.append();
      //父节点.append(子节点); //作为最后一个子元素添加.
      $(&#39;#btnAppend&#39;).click(function () {
        //1.1 新创建一个li标签,追加到ul1中
        // var $newLi = $(&#39;<li>我是新创建的li标签</li>&#39;);
        // $(&#39;#ul1&#39;).append($newLi);

        //1.2 获取ul1中的某一个li标签,追加到ul1中.
        //剪切过来作为最后一个子元素添加.
        // var $li3 = $(&#39;#li3&#39;);
        // $(&#39;#ul1&#39;).append($li3);

        //1.3 获取ul2中的某一个li标签,追加到ul1中.
        //剪切过来作为最后一个子元素添加.
        var $li32 = $(&#39;#li32&#39;);
        $(&#39;#ul1&#39;).append($li32);
      });


      //2.prepend()
      //父节点.prepend(子节点); //作为第一个子元素添加.
      $(&#39;#btnPrepend&#39;).click(function () {
        //2.1 新创建一个li标签,追加到ul1中
        // var $newLi = $(&#39;<li>我是新创建的li标签</li>&#39;);
        // $(&#39;#ul1&#39;).prepend($newLi);

        //2.2 获取ul1中的某一个li标签,追加到ul1中.
        //剪切过来作为最后一个子元素添加.
        // var $li3 = $(&#39;#li3&#39;);
        // $(&#39;#ul1&#39;).prepend($li3);

        //2.3 获取ul2中的某一个li标签,追加到ul1中.
        //剪切过来作为最后一个子元素添加.
         var $li32 = $(&#39;#li32&#39;);
         $(&#39;#ul1&#39;).prepend($li32);
      });


      //3.appendTo();
      //子节点.appendTo(父节点); //作为最后一个子元素添加.
      $(&#39;#btnAppendTo&#39;).click(function () {
        //1.1 新创建一个li标签,追加到ul1中
        var $newLi = $(&#39;<li>我是新创建的li标签</li>&#39;);
        $newLi.appendTo($(&#39;#ul1&#39;));
      });
      
      //4.prependTo()
      //子节点.prependTo(父节点); //作为第一个子元素添加.
      $(&#39;#btnPrependTo&#39;).click(function () {
        //1.1 新创建一个li标签,追加到ul1中
        var $newLi = $(&#39;<li>我是新创建的li标签</li>&#39;);
        $newLi.prependTo($(&#39;#ul1&#39;));
      });


    });
  </script>
  <body>
<input type="button" value="append" id="btnAppend"/>
<input type="button" value="prepend" id="btnPrepend"/>
<input type="button" value="appendTo" id="btnAppendTo"/>
<input type="button" value="prependTo" id="btnPrependTo"/>
<ul id="ul1">
  <li>我是第1个li标签</li>
  <li>我是第2个li标签</li>
  <li id="li3">我是第3个li标签</li>
  <li>我是第4个li标签</li>
  <li>我是第5个li标签</li>
</ul>

<ul id="ul2">
  <li>我是第1个li标签2</li>
  <li>我是第2个li标签2</li>
  <li id="li32">我是第3个li标签2</li>
  <li>我是第4个li标签2</li>
  <li>我是第5个li标签2</li>
</ul>
</body>

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How to add child nodes in jquery

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