--- title: An animated guide for Node.js event loop | daily.dev description: Node.js is single-threaded, but what does it mean in practical terms? We will explore it by following this piece of code step by step. The V8 JavaScript engine... canonical: https://daily.dev/posts/an-animated-guide-for-node-js-event-loop-xgluhlxak twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: An animated guide for Node.js event loop | daily.dev og:description: Node.js is single-threaded, but what does it mean in practical terms? We will explore it by following this piece of code step by step. The V8 JavaScript engine... og:url: https://daily.dev/posts/an-animated-guide-for-node-js-event-loop-xgluhlxak og:image: https://api.daily.dev/og/posts/XgLuHlXak.png og:image:alt: An animated guide for Node.js event loop og:image:width: 1200 og:image:height: 630 og:locale: 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. # An animated guide for Node.js event loop **[DEV](https://daily.dev/sources/devto)** 路 3 min read 路 455 upvotes 路 18 comments ## Summary Node.js is single-threaded, but what does it mean in practical terms? We will explore it by following this piece of code step by step. The V8 JavaScript engine manages a call stack, an essential piece that tracks which part of our program is running. The event loop connects the queue with the call stack. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@howmarketing** 路 4 upvotes > 馃 > 馃ぉ 馃啓 AND 馃啓 FOR YOU AUTHOR 馃啓 馃ぉ > Did anyone already seen some great didactic like these before? That just makes me blow 馃く, it's really good to see, to read 馃. > > It is very good and pleasant to see that every day the authors dedicate more and more their creative capacity to develop a didactic reading of their articles, enabling an assertive dynamic reading through the chronological graphic visualization from the introduction to the conclusion. If I show my 7 year old daughter this article she will understand and enjoy reading it. > > 鉂わ笍 > Thank you authors, I'm more than happy with the work... **@codingcatdev** 路 3 upvotes > This is a really great animation to show the event loop in JS for Node. It would be cool to be able to write JS and see the actual breakdown in realtime. **@leonsnr** 路 3 upvotes > Very nice and simple article about the background of the Node.js event loop **@tienthanhjlw** 路 3 upvotes > woww so nice! **@hondachan14** 路 2 upvotes > I love the animate! ## Similar posts on daily.dev - [Don鈥檛 just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) 路 CNCF 路 1 upvotes 路 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) 路 CNCF 路 1 upvotes 路 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) 路 CNCF 路 0 upvotes 路 0 comments --- Tags: [#javascript](https://daily.dev/tags/javascript), [#database](https://daily.dev/tags/database) [View this post on daily.dev](https://daily.dev/posts/an-animated-guide-for-node-js-event-loop-xgluhlxak) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"An animated guide for Node.js event loop","url":"https://daily.dev/posts/an-animated-guide-for-node-js-event-loop-xgluhlxak","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/an-animated-guide-for-node-js-event-loop-xgluhlxak"},"datePublished":"2022-11-06T06:28:55.364Z","dateModified":"2022-11-06T06:28:55.241Z","description":"Node.js is single-threaded, but what does it mean in practical terms? 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That just makes me blow 馃く, it鈥檚 really good to see, to read 馃.\nIt is very good and pleasant to see that every day the authors dedicate more and more their creative capacity to develop a didactic reading of their articles, enabling an assertive dynamic reading through the chronological graphic visualization from the introduction to the conclusion. If I show my 7 year old daughter this article she will understand and enjoy reading it.\n鉂わ笍\nThank you authors, I鈥檓 more than happy with the work I鈥檝e been noticing from all of you these last few years!\nPlease, keep doing that great job, our community thanks a lot for your services!","datePublished":"2022-11-09T14:31:56.860Z","url":"https://daily.dev/posts/XgLuHlXak#c-K_j8iQPbu","author":{"@type":"Person","name":"Gabriel Ariza Gomes de Castro","url":"https://daily.dev/howmarketing","image":"https://avatars.githubusercontent.com/u/72627426?v=4"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":4}},{"@type":"Comment","text":"This is a really great animation to show the event loop in JS for Node. It would be cool to be able to write JS and see the actual breakdown in realtime.","datePublished":"2022-11-08T14:59:58.484Z","url":"https://daily.dev/posts/XgLuHlXak#c-MIM-SEDAx","author":{"@type":"Person","name":"Alex Patterson","url":"https://daily.dev/codingcatdev","image":"https://lh3.googleusercontent.com/a-/AOh14GiUGZXqBRfzbDDFBYPRqNTaDnrnhFlMVUGwI-lT7g=s100"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":3}},{"@type":"Comment","text":"Very nice and simple article about the background of the Node.js event loop","datePublished":"2022-11-06T18:10:31.591Z","url":"https://daily.dev/posts/XgLuHlXak#c-bKcyVkC3i","author":{"@type":"Person","name":"Leon Sandner","url":"https://daily.dev/leonsnr","image":"https://media.daily.dev/image/upload/s--y2GGrVeK--/f_auto/v1713350788/avatars/avatar_nwAmxuSAQ4QFcFD5ajIW8"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":3}},{"@type":"Comment","text":"woww so nice!","datePublished":"2022-11-08T04:42:03.905Z","url":"https://daily.dev/posts/XgLuHlXak#c-OvDO5ds6I","author":{"@type":"Person","name":"Th脿nh Nguy峄卬 Ti岷縩","url":"https://daily.dev/tienthanhjlw","image":"https://lh3.googleusercontent.com/a/ALm5wu06HdQjwhBOliWL40kEdCADdKzYGhVn6lY6FZqOIw=s96-c"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":3}},{"@type":"Comment","text":"I love the animate!","datePublished":"2022-11-07T13:32:30.021Z","url":"https://daily.dev/posts/XgLuHlXak#c-oG7PuHt3W","author":{"@type":"Person","name":"Jason Jugo","url":"https://daily.dev/hondachan14","image":"https://avatars.githubusercontent.com/u/92832561?v=4"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":2}}]} ```