2019, Shaun Lewis, Mike Dunn, Native Mobile Development: A Cross-Reference for iOS and Android, O'Reilly Media, →ISBN, page 178:
This is a “stringly typed” example that is easy to break if the key names are mistyped, or change between versions of your app.
2021, Tim McNamara, Rust in Action, Simon and Schuster, →ISBN, page 98:
Enums can be a powerful aide in your quest to produce reliable, robust software. Consider them for your code when you discover yourself introducing “stringly-typed” data, such as message codes.