The Good, the Bad and the Absent

Talk Slides+Notes PDF (0.8MB)

“The Good, the Bad and the Absent” (or Success, Failure and Nil): a talk about the pitfalls of using Nil, and how we might represent absence or failure better.

My standard Ruby disclaimer applies.

Full credit to these blog posts for inspiration:

• Sandi Metz’ “Suspicions of Nil”
• Avdi Grimm’s “Null Objects and Falsiness”


Sorry about the yellow “speaker note” post-its; Keynote is terrible at exporting PDFs.