---
title: "leonardomso/33-js-concepts: 📜 33 JavaScript concepts every developer should know."
url: https://daily.dev/posts/leonardomso-33-js-concepts-33-javascript-concepts-every-developer-should-know--hr62diqsf
source_url: https://github.com/leonardomso/33-js-concepts
type: article
source: "Community Picks"
published: 2022-07-27T08:52:09.681Z
updated: 2023-12-07T12:02:45.284Z
tags: ["javascript", "functional-programming", "design-patterns", "v8", "data-structures"]
reading_time: 38
upvotes: 210
comments: 6
language: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# leonardomso/33-js-concepts: 📜 33 JavaScript concepts every developer should know.

**[Community Picks](https://daily.dev/sources/community)** · 38 min read · 210 upvotes · 6 comments

## Summary

This repository was created with the intention of helping developers master their concepts in JavaScript. It is based on an article written by Stephen Curtis and you can read it here. Feel free to submit a PR adding a link to your own recaps or reviews. All the translations for this repo will be listed below. The Ultimate Guide to Execution Contexts, Hoisting, Scopes, and Closures in JavaScript.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://github.com/leonardomso/33-js-concepts>

## Community discussion

Top comments from developers on daily.dev.

**@francocdev** · 2 upvotes

> This is one of the best JS repos, I recommend to read all the 33 concepts to get a deep understanding of JS.

**@johnnyrt** · 2 upvotes

> It’s a huge repository to whose wants to become a truly frontend developer

**@maarcusvinicius** · 0 upvotes

> Im read now

**@lednhatkhanh** · 0 upvotes

> Highly recommend

**@miladsdgh** · 0 upvotes

> I suggest that.

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---

Tags: [#javascript](https://daily.dev/tags/javascript), [#functional-programming](https://daily.dev/tags/functional-programming), [#design-patterns](https://daily.dev/tags/design-patterns), [#v8](https://daily.dev/tags/v8), [#data-structures](https://daily.dev/tags/data-structures)

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