Ruby:获取没有扩展名的文件名

Question

如何获取没有扩展名的文件名？例如，输入 "/dir1/dir2/test.html.erb" 应该返回 "test"。

在实际代码中，我将传递 __FILE__ 而不是 "/dir1/dir2/test.html.erb"。

Answer 1

阅读文档:

basename(file_name [, suffix] ) → base_name

Returns the last component of the filename given in file_name, which can be formed using both File::SEPARATOR and File::ALT_SEPARATOR as the separator when File::ALT_SEPARATOR is not nil. If suffix is given and present at the end of file_name, it is removed.

=> File.basename('public/500.html', '.html')
=> "500"

在你的情况下:

=> File.basename("test.html.erb", ".html.erb")
=> "test"