> often needed It's never needed, it's just often convenient for something quick and dirty. You can always write a guard to accomplish the same thing—roll your

> often needed It's never needed, it's just often convenient for something quick and dirty. You can always write a guard to accomplish the same thing—roll your own runtime safety. If you want to avoid doing it manually there's Zod. It's not that much different than writing a binding for a C library in another language in that you're manually enforcing the constraints of your app at the boundaries.