contents/h3.md
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----- id: h3 github: h3 home: /h3/ title: "H3" site: "https://h3.js.org" subtitle: "A tiny, extremely minimalist JavaScript microframework" summary: "A tiny, extremely minimalist JavaScript microframework" content-type: project active: true download: "https://github.com/h3rald/h3/releases/download/" version: 0.10.0 versionLabel: "Jittery Jem'Hadar" docs: /h3/H3_DeveloperGuide.htm ----- **H3** is a microframework to build client-side single-page applications (SPAs) in modern JavaScript. H3 is also: - **tiny**, under [700 sloc](https://github.com/h3rald/h3/blob/master/h3.js). - **modern**, in the sense that it runs only in modern browsers (latest versions of Chrome, Firefox, Edge & similar). - **easy** to learn, its API is comprised of only seven methods and two properties. ### I'm sold! Where can I get it? Here, look, it's just one file: <a href="https://raw.githubusercontent.com/h3rald/h3/v{{$version}}/h3.js" target="_blank" class="button primary">Download v{{$version}} ({{$versionLabel}})</a> Yes there is also a [NPM package](https://www.npmjs.com/package/@h3rald/h3) if you want to use it with WebPack and similar, but let me repeat: _it's just one file_. ### Hello, World? Here's an example of an extremely minimal SPA created with H3: ```js import { h3, h } from "./h3.js"; h3.init(() => h("h1", "Hello, World!")); ``` This will render a `h1` tag within the document body, containing the text `"Hello, World!"`. ### Something more complex? Have a look at the code of a [simple todo list](https://github.com/h3rald/h3/tree/master/docs/example) ([demo](https://h3.js.org/example/index.html)) with several components, a store and some routing. |