--- title: JavaScript Visualized: the JavaScript Engine | daily.dev description: JavaScript is based on the V8 engine used by Node.js and Chromium-based browsers. The engine tries to avoid parsing code that's not necessary right away. The... canonical: https://daily.dev/posts/javascript-visualized-the-javascript-engine-fev6jy-eo twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: JavaScript Visualized: the JavaScript Engine | daily.dev og:description: JavaScript is based on the V8 engine used by Node.js and Chromium-based browsers. The engine tries to avoid parsing code that's not necessary right away. The... og:url: https://daily.dev/posts/javascript-visualized-the-javascript-engine-fev6jy-eo og:image: https://api.daily.dev/og/posts/fEv6JY-EO.png og:image:alt: JavaScript Visualized: the JavaScript Engine 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. # JavaScript Visualized: the JavaScript Engine **[Community Picks](https://daily.dev/sources/community)** · 4 min read · 1015 upvotes · 35 comments ## Summary JavaScript is based on the V8 engine used by Node.js and Chromium-based browsers. The engine tries to avoid parsing code that's not necessary right away. The optimized machine code can simply be re-used in order to speed things up. V8 is open source and has some great documentation on how it works under the hood. ## 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. **@graham623** · 5 upvotes > @tsahimatzliah and @dailyperfect - I think you will love the graphics in this! > > Always loved this article, thanks for adding it to Community Picks @bobbyiliev **@fuadpashayev** · 5 upvotes > Woow. It is so beautiful. Thanks for nice animations, I liked them so much. **@bytefer** · 5 upvotes > The animations are so cool and so helpful for learning the essentials of JavaScript. Thank you for sharing! **@ngorana** · 3 upvotes > I really loved the article. It motivated me to some extend. The writer is definitely amazing. **@johnnyrt** · 3 upvotes > Wow 🤯 > I’m a huge fan about how things works under the hoods and I loved the way that you explained, in how you turned the theory in these lovely gifs. > Thank you so much to share with us your knowledge about JS V8 Engine. ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 1 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments --- Tags: [#javascript](https://daily.dev/tags/javascript), [#v8](https://daily.dev/tags/v8) [View this post on daily.dev](https://daily.dev/posts/javascript-visualized-the-javascript-engine-fev6jy-eo) ```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":"JavaScript Visualized: the JavaScript Engine","url":"https://daily.dev/posts/javascript-visualized-the-javascript-engine-fev6jy-eo","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/javascript-visualized-the-javascript-engine-fev6jy-eo"},"datePublished":"2022-08-10T07:40:55.117Z","dateModified":"2023-12-07T12:02:45.284Z","description":"JavaScript is based on the V8 engine used by Node.js and Chromium-based browsers. 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It is so beautiful. Thanks for nice animations, I liked them so much.","datePublished":"2022-08-11T04:36:35.797Z","url":"https://daily.dev/posts/fEv6JY-EO#c-AoUy_Z1Dt","author":{"@type":"Person","name":"Fuad Pashayev","url":"https://daily.dev/fuadpashayev","image":"https://avatars.githubusercontent.com/u/29862327?v=4"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":5}},{"@type":"Comment","text":"The animations are so cool and so helpful for learning the essentials of JavaScript. 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