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GitHub
github.com › Chalarangelo › 30-seconds-of-code
GitHub - Chalarangelo/30-seconds-of-code: Coding articles to level up your development skills · GitHub
Coding articles to level up your development skills - Chalarangelo/30-seconds-of-code
Author   Chalarangelo
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30 Seconds of Code
30secondsofcode.org
30 seconds of code
Browse 694 coding articles to level up your coding skills on 30 seconds of code.
Discussions

30-seconds-of-code: Useful JavaScript snippets that you can understand in 30 seconds or less.
This gets reposted every month. I don't know what's useful about those, but I would call them interesting. Certainly worth it to read and analyze them, not sure about using them in real apps. EDIT. I'd like to clarify that each time this is reposted, more stuff is added to the repo. There are more and more actually useful methods added each time, so don't read my comment and be discouraged to check this repo out. More on reddit.com
🌐 r/javascript
12
313
October 15, 2018
30 seconds of Code
Ok I'm not an ES6 expert so forgive me if this is a dumb question, but what's the point of wrapping this in a function ? Can't you just call arr.every(fn) directly? More on reddit.com
🌐 r/webdev
5
77
March 19, 2019
30 seconds of code: Curated collection of useful JavaScript snippets that you can understand in 30 seconds or less.

Leave the uglification to the uglifier please. Expressive variable names never hurt anyone. Which of these would you prefer?

const countOccurrences = (arr, value) => arr.reduce((a, v) => (v === value ? a + 1 : a + 0), 0);

const countOccurrences = (haystack, needle) => haystack.filter(value => value === needle).length;
More on reddit.com
🌐 r/javascript
78
349
January 3, 2018
30 seconds of code: Learn JavaScript in 30 seconds, one function at a time

This is definitely not a good site to learn javascript if you're a newb.

But it looks like a nice reference / cheat sheet.

More on reddit.com
🌐 r/javascript
26
258
June 13, 2019
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GitHub
github.com › 30-seconds
30 seconds of code · GitHub
October 27, 2023 - 30 seconds of code is an accessible high-quality knowledge base for developers of all skill levels, established in 2017. Since then, we have created hundreds of short code snippets and programming articles with the help of a large community ...
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30secondsofknowledge
30secondsofknowledge.com
Don't let your engineering brain rot in the age of AI | 30 Seconds Of Knowledge
... 30 Seconds of Knowledge is a browser extension that replaces your blank new tab with one real code snippet to read - a language feature, a framework pattern, an interview answer.
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DEV Community
dev.to › ml318097 › 30-seconds-of-code-learn-faster-code-smarter-2ab7
⚡ 30 Seconds of Code — Learn Faster, Code Smarter - DEV Community
August 29, 2025 - 30secondsofcode.org is packed with hundreds of coding snippets, articles, and guides across JavaScript, React, CSS, Python, and more. 💡 Why it’s awesome · ✅ Bite-sized code you can learn in under 30 seconds · ✅ Covers algorithms, ...
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Product Hunt
producthunt.com › home › 30 seconds of code
30 seconds of code: Short code snippets for all your development needs | Product Hunt
April 14, 2022 - 30 seconds of code is a learning resource for developers of all skill levels in the form of a large collection of 500+ short code snippets in JavaScript, Python, CSS and React. After two years of work, the project is relaunched with a brand ...
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npm
npmjs.com › package › 30-seconds-of-code
30-seconds-of-code - npm
December 5, 2018 - Curated collection of useful JavaScript snippets that you can understand in 30 seconds or less.
      » npm install 30-seconds-of-code
    
Published   Dec 05, 2018
Version   1.2.3
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30 Seconds of Code
chalarangelo-30-seconds-of-code.mintlify.app
30 Seconds of Code - 30 Seconds of Code
Every snippet is designed to be understood in 30 seconds or less, with clear explanations and real-world examples. ... All code snippets are tested, optimized, and ready to use in your projects.
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Visual Studio Marketplace
marketplace.visualstudio.com › items
30 seconds of code - Visual Studio Marketplace
December 7, 2018 - Extension for Visual Studio Code - JavaScript snippets you can understand in 30 seconds or less.
Find elsewhere
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Medium
medium.com › front-end-weekly › 30-seconds-of-code-reject-500b7c7750c8
30 Seconds of Code: reject(). 30 Seconds of Code is a brilliant… | by Yazeed Bzadough | Frontend Weekly | Medium
May 6, 2018 - 30 Seconds of Code: reject() 30 Seconds of Code is a brilliant collection of JavaScript snippets, digestible in ≤ 30 seconds. Anyone looking to master JavaScript should go through the entire …
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Reddit
reddit.com › r/javascript › 30-seconds-of-code: useful javascript snippets that you can understand in 30 seconds or less.
r/javascript on Reddit: 30-seconds-of-code: Useful JavaScript snippets that you can understand in 30 seconds or less.
October 15, 2018 - In production code you should probably ... love your feedback ... 30 seconds of code: Curated collection of useful JavaScript snippets that you can understand in 30 seconds or less....
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30 Seconds of Code
30secondsofcode.org › about
About - 30 seconds of code
I started 30 seconds of code in 2017 as a side project to help me and others learn new things and improve their coding skills, by providing free access to curated content.
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30 Seconds of Code
30secondsofcode.org › snippets › p › 1
Code Articles - 30 seconds of code
30 seconds of code contains a curated collection of code articles covering a wide range of development needs.
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Opensourcecollection
opensourcecollection.com › blog › 30-seconds-of-code-all-about-this-learning-resource
30 Seconds Of Code- All About This Learning Resource
The whole idea is to make it easy for developers to find and use these quick solutions without having to write long and complicated code or spend a lot of time researching. Since it started in 2017, 30 Seconds of Code has grown into a community with over 250 contributors and more than 10 maintainers.
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Best of JS
bestofjs.org › projects › 30-seconds-of-code
Best of JS • 30 seconds of code
Trends and data about 30 seconds of code project. Curated collection of useful Javascript snippets that you can understand in 30 seconds or less.
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Reddit
reddit.com › r/webdev › 30 seconds of code
r/webdev on Reddit: 30 seconds of Code
March 19, 2019 - 30 Seconds of Knowledge is an extension that gives you a random code snippet every time you open a tab.
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Codeanywhere
codeanywhere.com › github › 30-seconds-of-code
30-seconds-of-code · Run source code examples online · AI Cloud IDE · Codeanywhere
Codeanywhere is sunsetting on July 1, 2026. Read more ... Open 30-seconds-of-code code in a cloud IDE Short JavaScript code snippets for all your development needs