Group: style

Maturity: stable

Dart SDK: >= 2.0.0 • (Linter v0.1.54)

Since info is static, may be stale

View all Lint Rules

Using the Linter

DO name source files using lowercase_with_underscores.

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:


The lint library_names can be used to enforce the same kind of naming on the library.