Esy-State

Make your DOM react to changes.

Low-code framework, no aditional dependencies (100% Vanilla JS), no building, no transpilation.

👋 Getting Started

$ npm i @esyfyi/esy-state

// Serv the module files staticly (With express for example) 
app.use('/esy-state',  
  express.static('node_modules/@esyfyi/esy-state', { index: ["index.mjs"] }));

<h1 #hello-world></h1>
<script type="module">
  import { state } from './esy-state';
  state["hello-world"] = 'Hello World!';
</script>

🤨 How it works?

Esy-state is a lightweight Javascript framework that makes building reactive websites easier than ever before. With esy-state, users can bind HTML elements to a reactive store, meaning that any changes to the store will be reflected directly in the HTML DOM. This makes it possible to create dynamic and responsive websites with just a few lines of Javascript code.

📚 Documentation

• Documentation

🧩 Features

Simple one-way data binding

<h1 #hello-world></h1>
<script type="module">
  import { state } from './esy-state';
  state["hello-world"] = 'Hello World!';
</script>

One-way Data binding with "Mustache" syntax

<h1 #world>Hello {{world}}!</h1>
<script type="module">
  import { state } from './esy-state';
  state["world"] = 'World';
</script>

One-way data binding (arbitrary HTML)

⚠️ Dynamically rendering arbitrary HTML on your website can be very dangerous because it can easily lead to XSS vulnerabilities. Only use this method on trusted content and never on user-provided content.

<div +hello-world></div>
<script type="module">
  import { state } from './esy-state';
  state["hello-world"] = '<h1>Hello World!</h1>';
</script>

Conditional rendering

<div ?foo>I'm visible!</div>
<div ?!foo>I'm not visible</div>
<script type="module">
  import { state } from './esy-state';
  state["foo"] = true;
</script>

List rendering

<div %arr></div>

 <li %people>
  <div>Index: {{__index}}</div>
  <div>Name: {{name}}</div>
  <div>Age: {{age}}</div>
</li>

<script type="module">
  import { state } from './esy-state';
  state["arr"] = [1, 2, 3, 4, 5];
  state["people"] = [{ name: "John", age: 20 }, { name: "Jane", age: 21 }];
</script>

Muanipulate the state (mutations)

Hello <div #name>Noname</div>!
<input type="text" id="name" placeholder="Enter your name..">
<button @click="setName">Add</button>

<script type="module">
  import { state, mutations } from './esy-state';
  mutations.setName = () => {
    const name = document.getElementById("name").value;
    state["name"] = name;
  };
</script>

TODO: Importing partials

<import-html src="./header.html"></import-html>

🚀 Roadmap

• Known issue: Neasted list rendering is not possible yet.
• Improvment needed on: Mustache template implementation.
• Improvment needed on: Subscription handling.
• Better documentation.
• Figure out: CDN distribution besides NPM package.

💡 Future Feature Ideas

• CSS class manipulation (add, remove, toggle)
• A common pain-point is how to create Modals/Pop-ups?
• How we could decapule and re-use partial logic? Web Components maybe?
• Routing (nice urls /foo/bar)?

📝 Contributing

TODO: Create guidlines for contributing.

💬 Running the examples

$ npm run examples