js中神奇的出现一个不可见字符，求解决方法

Question

一个上传的地方，代码var data = jQuery.parseJSON(data); 这步出错。原因是多了一个不可见字符导致转码失败。 但是定位又找不到是哪里加的这个字符，所以请表格帮我写个正则，把这个过滤掉我的想法是在jQuery.parseJSON(data);之前用正则，只取可见字符进行转码（只匹配下面那些就行，用不到的字符全部过滤掉）大概涉及到的字符是这些：{"status":"true","info":{"name":"\u4fe1\u606f\u5b89\u5168\u5e08\u7406\u8bba\u8003\u8bd5\u590d\u4e60\u9898(\u6574\u7406).pdf","type":"courseware","size":297069,"key":"download","ext":"pdf","md5":"cf18eb2947ec4fbad4b1c039f9673585","sha1":"281edac612317cdc8ea8b84ce55df1048a9a25f9","savename":"58c6550dbca94.pdf","savepath":"\/Uploads\/courseware\/2017-03-13\/","userid":false,"create_time":1489392909,"file_id":31476}}js实在渣，写了半天写不对，不知道是写的代码有问题还是这样的思路不对。求表哥帮忙写一个

Answer 1

let data = '{"status":"true","info":{"name":"\u4fe1\u606f\u5b89\u5168\u5e08\u7406\u8bba\u8003\u8bd5\u590d\u4e60\u9898(\u6574\u7406).pdf","type":"courseware","size":297069,"key":"download","ext":"pdf","md5":"cf18eb2947ec4fbad4b1c039f9673585","sha1":"281edac612317cdc8ea8b84ce55df1048a9a25f9","savename":"58c6550dbca94.pdf","savepath":"\/Uploads\/courseware\/2017-03-13\/","userid":false,"create_time":1489392909,"file_id":31476}}'

let json = JSON.parse(data.trim())

console.log(json)

试试

var data = jQuery.parseJSON(data.trim());

这个字符出现的原因可以参考这里进行排除