leonardomso/33-js-concepts
★ 66,527 stars
Covered in week 2026-W10 · the 2026-03 report
📜 33 JavaScript concepts every developer should know.
What 33-js-concepts is
This repository helps developers master core JavaScript concepts. Each concept includes clear explanations, practical code examples, and curated resources.
From the repository README · read it on GitHub →
Transcript
Think you really know JavaScript? This repo covers 33 essential concepts every developer needs to master, from primitives and closures to the event loop and async await. Each concept comes with clear explanations, practical code examples, and curated resources like blog posts and videos to deepen your understanding. Whether you're prepping for interviews or filling knowledge gaps, this 66,000 star collection is your complete JavaScript roadmap to mastery. Star the repo at github.com/leonardomso/33-js-concepts