| 内容 | 下面的代码演示了JS中如何通过数组对象的join方法将数组元素连接成一个字符串输出
 <!DOCTYPE html>
 <html>
 <body>
 <p id="demo">
 Click the button to join the array elements into a string.
 </p>
 <button onclick="myFunction()">Try it</button>
 <script>
 function myFunction()
 {
 var fruits = ["Banana","Orange","Apple","Mango"];
 var x=document.getElementById("demo");
 x.innerHTML=fruits.join();
 }
 </script>
 </body>
 </html>
 运行结果如下:
 Banana,Orange,Apple,Mango
 |