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

TypeScript Extend Type How does TypeScript Extend Type work?

typescript - Extending interfaces and hover hints - Stack Overflow

How To Extend Express Request Interface in Typescript

The type hierarchy tree

Getting started with TypeScript classes

TypeScript Interface Merging And Extending Modules - PQINA

extension methods - Typescript - How to extend a class in a namespace? - Stack Overflow

reactjs - How to extend JSX types for Typescript? - Stack Overflow

Type Challenges: Implement the OmitByType Utility Type, by Bytefer

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