Saves the field's values into a file. If none is given the values are saved in the same file they have been loaded from (if the load method has been called), otherwise the file is not saved.
FileException on file error
example.save("example.txt"); example.save("dir/test.txt"); assert(read("example.txt") == read("dir/test.txt"));
See Implementation
Saves the field's values into a file. If none is given the values are saved in the same file they have been loaded from (if the load method has been called), otherwise the file is not saved.