简单教程
提交运行
代码编辑器:
<p id="demo">点击按钮创建数组,并显示数组元素个数</p> <button onclick="myFunction()">点我</button> <script> function myFunction() { var fruits = ["Banana", "Orange", "Apple", "Mango"]; var x=document.getElementById("demo"); x.innerHTML=fruits.length; } </script>
运行结果: