Functional

mapcar and Functional Iteration

How mapcar and its relatives let you transform lists by applying a function across them, without hand-writing explicit loops.

What Is Haskell?

An introduction to Haskell as a purely functional, statically typed, lazily evaluated language, and why those properties matter in practice.

Functional Components in React

Understand how to define and use functional components, the modern default building block of React apps.

Functional vs Non-Functional Requirements

How to distinguish what a system must do (functional requirements) from how well it must do it (non-functional requirements), and why both shape architecture.

HTTP Interceptors

Understand how Angular's functional HTTP interceptors let you centrally attach headers, log requests, and handle errors for every outgoing request.

The inject() Function

Learn how the inject() function offers a flexible alternative to constructor injection, and how it enables DI in functional contexts like guards, resolvers, an…