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          Svelte logo
          Svelte logotype

          Cybernetically enhanced web apps

          豆奶app

          Build boilerplate-free components using languages you already know — HTML, CSS and JavaScript

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          豆奶app

          Svelte compiles your code to tiny, framework-less vanilla JS — your app starts fast and stays fast

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          豆奶app

          No more complex state management libraries — Svelte brings reactivity to JavaScript itself

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          Svelte is a radical new approach to building user interfaces. Whereas traditional frameworks like React and Vue do the bulk of their work in the browser, Svelte shifts that work into a compile step that happens when you build your app.

          Instead of using techniques like virtual DOM diffing, Svelte writes code that surgically updates the DOM when the state of your app changes.

          Read the introductory blog post to learn more.

          npx degit sveltejs/template my-svelte-project# or download and extract this .zip filecd my-svelte-projectnpm installnpm run dev

          See the quickstart guide for more information.

          Learn Svelte

          Svelte components are built on top of HTML. Just add data.

          CSS is component-scoped by default — no more style collisions or specificity wars. Or you can use your favourite CSS-in-JS library.

          Trigger efficient, granular updates by assigning to local variables. The compiler does the rest.

          Build beautiful UIs with a powerful, performant transition engine built right into the framework.

          Who's using Svelte?

          Contributors

          Svelte is free and open source software, made possible by the work of dozens of volunteers. Join us!

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