简单教程
提交运行
代码编辑器:
<p id="demo">点击按钮截取第三个和第四个元素,使用负数</p> <button onclick="myFunction()">点我</button> <script> function myFunction(){ var fruits = ["Banana", "Orange", "Lemon", "Apple", "Mango"]; var myBest = fruits.slice(-3,-1); var x=document.getElementById("demo"); x.innerHTML=myBest; } </script>
运行结果: