TypeScript: Documentation - TypeScript 3.9

Getting started with TypeScript classes

Generic Parameter Defaults in TypeScript — Marius Schulz

Typescript Generics — Deep dive. Generic type is a feature that let us…, by Gili Yaniv

Unable to specify return type of class extends T implements IFooable · Issue #15001 · microsoft/TypeScript · GitHub

Flexiblly Extend Nested Structures - Trees that Grow in TypeScript - DEV Community

Pattern for define type of class extends an abstract class. · Issue #9347 · microsoft/TypeScript · GitHub

TypeScript Generic with some validation, by Taufan, Nerd For Tech

TypeScript: Array generic, Custom generic type, Generic extends, Default values of Generics, Generic types with extends

TypeScript: What is the difference between type and interface?, by Andrew Courter

Type Challenges: Implement the RequireAtLeastOne Utility Type, by Bytefer