What is TypeScript’s ‘const’ type parameter modifier (TypeScript 5.0) and what does it infer?

Question

TypeScript Professional — Medium

What is TypeScript’s ‘const’ type parameter modifier (TypeScript 5.0) and what does it infer?

Accepted Answer

TypeScript's 'const' type parameter modifier in TypeScript 5.0 is a const assertion that produces narrow literal types instead of widened primitive types. This helps maintain the specific literal values assigned to the type parameter.