es6代码,如何查看babel 转换为ES5之后的结果?-灵析社区

这样一段ES6的代码, 如何查看babel 转换为ES5之后的结果? class Person {} function f(cls) { return class Student {}; } console.log(f(Person)); 1. 在这个网站 [demo](https://link.segmentfault.com/?enc=JFdxnl8nmQ9ABR6KdHihKw%3D%3D.L8pYzbcPhe82Vaes0Iunh7HMoCIGkTKivPD%2Ba0GDdNK1btupdpyAbh5%2FFtf0l74juIeiKaSY7WR3fj5kfo65PWgdCvXgToOA3hpZJYFsAHQGnWpYpVFOiBk5Hiwvd3gPgvZbag9MlJ2gqlnS2k1Rmtq40lBO7t1ha8FRojTpYbq4mwZAtQBhqwXhGL2WxwPWSod4iVDrO%2B79esBcnNK2GAGCg13lsDzD%2B63xOzAU8U9aaDpLyTtOwLdIRIrZjbNnOK5LCb1ejMahyChse5W3DHz%2FUfqn%2BRSxA5GW8SkhcP8HEvjN7zW8UT9wqjiyuD7dBWUy%2BLmic%2B94Xt%2BxWPAMnz4N2d1XbS2MjeRJU5blMkIkhF%2Fojs6qMrVDXAo070Qx9PddMsZvv2tuBJC6xvCJYWzwHyu39UNWGn5OGCRq0G0SPXTttAKYVTNnIwTu21hbDa%2FYMJH0rvLW8AighrWql002yw7SvvjUmqDdzQvtONEGVnStVIw4m%2FjYfYPACCBHqvGlCe2WSj5mspcrWjbrW9W1iwYmicms%2BtzripBOA97AZcF2Cdz1KOXyfaxw1PQBh8OeVZBwayNsx6xv558rq1w4va6wkbRzuKuTBfIzyRCwtGaxLVEYOUtRWK%2B3PcxbzWB%2Bs871jDEm83PqoTQZkTE076k7Dq8hICZE5let6GRExi7CF3fK7JDT8vR6PazfaW8bCOMtsNLF775tDOHY9mpp3%2FGslBWCeh9wA1spL%2Fo%3D) 如何配置 babel将代码转为es5 2. 有没有其他playground 能查看转换后的结果 ===================