Tweet by KentonVarda

December 11, 2025

Lots of people saying that not all validation can be represented in TS types, e.g. "length < N" or "is a valid email". That's OK, I'm fine with writing code for those things. But 95% of the time I just want to verify that a string property is actually a string.

Author
KentonVarda
Date
December 11, 2025