DO name source files using
Some file systems are not case-sensitive, so many projects require filenames to be all lowercase. Using a separating character allows names to still be readable in that form. Using underscores as the separator ensures that the name is still a valid Dart identifier, which may be helpful if the language later supports symbolic imports.
Files without a strict
.dart extension are ignored. For example:
library_names can be used to enforce the same kind of naming on the