tryjsref_shift 在线代码实例

 <p id="demo">单击按钮删除数组的第一个元素。</p>
<button onclick="myFunction()">点我</button>
<script>
var fruits = ["Banana", "Orange", "Apple", "Mango"];
function myFunction(){
	fruits.shift();
	var x=document.getElementById("demo");
	x.innerHTML=fruits;
}
</script>