Extends

TS Ep 21: Class Inheritance, `super()`, and the `override` Keyword

9 August 2026·701 words·4 mins

Intermediate Typescript Classes Inheritance Extends Super Override

An in-depth exploration of class inheritance in TypeScript. Learn how extends establishes prototypal chain linkages, super() constructor constraints, method overriding with super.method(), and using TypeScript 4.3+ override modifier to prevent silent refactoring bugs.

TS Ep 30: Generic Constraints (`extends` Keyword)

9 August 2026·832 words·4 mins

Intermediate Typescript Generics Generic-Constraints Extends Type-Bounds

An in-depth guide to Generic Constraints in TypeScript. Learn why unconstrained <T> limits property access, how <T extends Shape> establishes lower type bounds, why generic constraints outperform interface parameter types, and how to constrain keys using <K extends keyof T>.

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