🔗 How to Install UIElement

UIElement works without build tools but also supports NPM and module bundlers for larger projects. Choose the option that best fits your needs.

🔗 Using a CDN

For the easiest setup, include UIElement via a CDN. This is ideal for testing or quick projects where you want lightweight interactivity without additional tooling.

<script src="https://cdn.jsdelivr.net/npm/@zeix/ui-element@latest/index.js"></script>

🔗 Self-Hosting UIElement

For production use, you may want to self-host UIElement to avoid relying on a CDN. You can download the latest version from:

Github Repository

Simply host the file on your server and include it like this:

<script src="/path/to/your/hosted/ui-element.js"></script>

Why self-host?

• You control updates and avoid breaking changes from external CDNs.
• Works for projects with stricter Content Security Policy rules.

Remember to keep the hosted file updated to use the latest features and bug fixes.

🔗 Installing via Package Managers

If you’re using a bundler like Vite, Webpack, or Rollup, install UIElement via NPM or Bun:

npm install @zeix/ui-element

bun add @zeix/ui-element

Then import the needed functions in your JavaScript:

import { asString, component, first, on, RESET, setText } from '@zeix/ui-element'

🔗 Creating Your First Component

Now, let's create an interactive Web Component to verify your setup.

What This Component Does

• Displays “Hello, World!” by default.
• Updates dynamically when you type into the input field.

🔗 Markup

Include the following in your server-rendered HTML:

<hello-world>
	<label>Your name<br>
		<input type="text">
	</label>
	<p>Hello, <span>World</span>!</p>
</hello-world>

🔗 Component Definition

Save the following inside a <script type="module"> tag or an external JavaScript file.

<script type="module">
	import { asString, component, on, RESET, setText } from "https://cdn.jsdelivr.net/npm/@zeix/ui-element@latest/index.js"

	component("hello-world", {
		// Parse "name" attribute, falling back to server-rendered content
		name: asString(RESET)
	}, (el, { first }) => [

		// Update content dynamically based on the "name" signal
		first("span", setText("name")),

		// Handle user input to change the "name"
		first("input", on("input", e => {
			el.name = e.target.value || RESET
		}))
	])
</script>

What Happens Here?

• The asString(RESET) signal parses the "name" attribute, falling back to server-rendered value (constant RESET).
• The setText('name') effect syncs the state with the <span>.
• The on('input') event updates the state whenever you type in the first <input> field, falling back to server-rendered value if empty.
• The Web Component hydrates automatically when inserted into the page.

🔗 Verifying Your Installation

If everything is set up correctly, you should see:

• A text input field
• A greeting (Hello, World!)
• The greeting updates as you type

If it's not working:

• Check the browser console for errors (missing imports, typos).
• Ensure your <script> tag is set to type="module" when using ES modules.
• If using NPM, confirm UIElement is installed inside node_modules/@zeix/ui-element.

🔗 Next Steps

Now that UIElement is installed, explore the core concepts for Building Components:

• ✅ Component anatomy and lifecycle (using Web Components)
• ✅ Accessing sub-elements (select children)
• ✅ Signals & effects (state-driven DOM updates)
• ✅ Event listeners (react to user interaction)

Or jump straight to Styling Components for CSS best practices.