Tagged: generics
Typescript
TS2589: Type instantiation is excessively deep and possibly infinite
A recursive conditional or mapped type is nesting too deeply for TypeScript's instantiation depth limit — usually from processing a large union, a deeply recursive utility type, or inferring across many chained generic calls. Add an explicit base case to stop the recursion, or simplify the type so TypeScript doesn't have to expand it so many levels deep.
Draft·
TypescriptTS2344: Type 'X' does not satisfy the constraint 'Y'
You're passing a type argument to a generic that doesn't satisfy the `extends` constraint the generic parameter declares. Check what the constraint actually requires (e.g. `T extends { id: string }`), and either pass a type that genuinely matches it, or loosen the constraint if it was written more narrowly than the function actually needs.
Draft·