TypeScript Snippet

TypeScript Generic Utility Types Tour

Difficulty: Easy

TypeScript ships with a rich set of utility types (`Partial`, `Pick`, `Awaited`) and the language is expressive enough that you can build the rest yourself. This snippet tours the three most useful custom utilities (`DeepPartial`, `ValueOf`, and an `Awaited` recap), each with a runtime sentinel that proves the type lines up with the value. Use it as a one-page cheat sheet before reaching for individual deep dives in the rest of the catalog.