My Functional Programming Awakening: Patterns I’d Been Using All Along

September 2, 2025

Illustration of a person having a eureka moment with a glowing lightbulb above their head, surrounded by icons representing functional programming and JavaScript against a starry night background.

In June 2023, I took David Beazley’s online course “The Functions” – a one-day, six-hour deep dive into functional programming concepts. While taught in Python, it opened my eyes to patterns I’d been unconsciously using in JavaScript for years. This post captures my journey through those concepts, reimagined in JavaScript.

Source: My Functional Programming Awakening: Patterns I’d Been Using All Along

A great, succinct overview of some of the key patterns of functional programming as told through JavaScript.