AngularJS - 如何列出给定文件夹中的文件名？

I have this folder/directory 'x' in the public folder of my application. Now I have path name till the folder i.e., /path/to/dir/x , but I don't know the names of the files in this directory. Now I need to provide URL links to the files in the html a tag's href attribute.I have this folder/directory 'x' in the public