JavaScript動態向ul中插入100個li節點,5秒後實現元素的倒排
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script>
//用JS爲id爲test的ul下動態創建100個li節點,1秒後將這100個節點實現倒排(節點處理,非innerHTML)
window.onload = function(){
var ul = document.getElementById("test");
for(var i=0;i<100;i++){
var li = document.createElement("li");
var content = document.createTextNode(i);
li.appendChild(content);
ul.appendChild(li);
}
// document.write(ul.firstChild);
setTimeout(function(){
var temp=ul.removeChild(ul.lastChild);
//ul.appendChild(temp);
ul.insertBefore(temp,ul.firstChild);
for(var j=0;j<99;j++){
var temp2=ul.removeChild(ul.lastChild);
ul.insertBefore(temp2,ul.childNodes[j+2]);
}
},5000);
}
</script>
</head>
<body>
<ul id="test">
</ul>
</body>
</html>