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README.md

Hyperapp

The tiny framework for building hypertext applications.

  • Do more with less—We have minimized the concepts you need to learn to get stuff done. Views, actions, effects, and subscriptions are all pretty easy to get to grips with and work together seamlessly.
  • Write what, not how—With a declarative API that's easy to read and fun to write, Hyperapp is the best way to build purely functional, feature-rich, browser-based apps using idiomatic JavaScript.
  • Smaller than a favicon—1 kB, give or take. Hyperapp is an ultra-lightweight Virtual DOM, highly-optimized diff algorithm, and state management library obsessed with minimalism.

Here's the first example to get you started. Try it here—no build step required!

<script type="module">
  import { h, text, app } from "https://unpkg.com/hyperapp"

  const AddTodo = (state) => ({
    ...state,
    value: "",
    todos: state.todos.concat(state.value),
  })

  const NewValue = (state, event) => ({
    ...state,
    value: event.target.value,
  })

  app({
    init: { todos: [], value: "" },
    view: ({ todos, value }) =>
      h("main", {}, [
        h("h1", {}, text("To do list")),
        h("input", { type: "text", oninput: NewValue, value }),
        h("ul", {},
          todos.map((todo) => h("li", {}, text(todo)))
        ),
        h("button", { onclick: AddTodo }, text("New!")),
      ]),
    node: document.getElementById("app"),
  })
</script>

<main id="app"></main>

Check out more examples

The app starts by setting the initial state and rendering the view on the page. User input flows into actions, whose function is to update the state, causing Hyperapp to re-render the view.

When describing how a page looks in Hyperapp, we don't write markup. Instead, we use h() and text() to create a lightweight representation of the DOM (or virtual DOM for short), and Hyperapp takes care of updating the real DOM efficiently.

Installation

npm install hyperapp

Documentation

Ready to dive in? Learn the basics in the Tutorial, check out the Examples, or visit the Reference for more detail.

To access Web Platform APIs (like fetch or addEventListener) in a way that makes sense for Hyperapp, learn how to create your own effects and subscriptions. For everything else, from third-party packages to real-world examples, browse the Hyperawesome collection.

Help, I'm stuck!

If you've hit a stumbling block, hop on our Discord server to get help, and if you remain stuck, please file an issue, and we'll help you figure it out.

Contributing

Hyperapp is free and open-source software. If you love Hyperapp, becoming a contributor or sponsoring is the best way to give back. Thank you to everyone who already contributed to Hyperapp!

License

MIT

项目简介

🚀 Github 镜像仓库 🚀

源项目地址

https://github.com/jorgebucaran/hyperapp

发行版本 26

2.0.0

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贡献者 106

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开发语言

  • JavaScript 100.0 %