TypeScript: Documentation - TypeScript 3.9

Use 'extends' keyword to narrow the value of a generic

Typescript generics extending class and interface - Stack Overflow

Classes in TypeScript

How to extend the Express Request object in TypeScript - LogRocket

How to Override Specific Property Types Using TypeScript

Extend Interfaces From Other Interfaces

Tiny Types in TypeScript. Giving domain meaning to primitive…

Allow T extends enum generic constraint · Issue #30611 · microsoft/ TypeScript · GitHub

Fun With TypeScript Template Literal Types, by Kevin B. Greene

Use TypeScript Record Types for Better Code, by Charles Chen