JavaScript cloneNode(): clone node
Syntax:
nodeObject.cloneNode(boolean)
Parameter description:
For example, clone the node with id="demo":
<div id="demo">
<div>点击这里进行克隆</div>
<div>节点</div>
<div>节点</div>
</div>
<script type="text/javascript">
document.getElementById("demo").onclick=function(){
alert(this.cloneNode(true).children.length);
}
</script>
