打不出来

[tasama]

Challenge Escape Sequences in Strings has an issue.
User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36.
Please describe how to reproduce this issue, and include links to screenshots if possible.

My code:

var myStr = "\""; // 请修改这一行

[zangshengjie]

var myStr="\ \t \b \r \n" ;