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**WIP** (the experimentation phase) | [source code on GitHub](https://github.com/jaandrle/deka-dom-el) | [*mirrored* on Gitea](https://gitea.jaandrle.cz/jaandrle/deka-dom-el)
***Vanilla by default — steroids if needed***
***Vanilla for flavouring — a full-fledged feast for large projects***
*…use simple DOM API by default and library tools and logic when you need them*
```js
const value= S("");
document.body.append(
el("span", { style: { fontWeight: "bold" }, textContent: value }),
el("input", { type: "text" },
on("change", event=> value(event.target.value)))
el("h1", "Hello World 👋"),
el("p", "See some syntax examples here:"),
el("ul").append(
el("li").append(
el("a", { textContent: "Link to the library repo", title: "Deka DOM El — GitHub", href: "https://github.com/jaandrle/deka-dom-el" })
),
el("li").append(
"Use extended Vanilla JavaScript DOM/IDL API: ",
el("span", { textContent: "» this is a span with class=cN and data-a=A, data-b=B «", className: "cN", dataset: { a: "A", b: "B" } })
),
el("li").append(
el(component, { textContent: "A component", className: "example" }, on("change", console.log))
)
)
);
function component({ textContent, className }){
const value= S("onchange");
return el().append(
el("p", { textContent, className }),
el("p", { className: [ className, "second-line" ] }).append(
"…with reactivity: ", el("em", { style: { fontWeight: "bold" }, ariaset: { live: "polite" }, textContent: value }),
),
el("input", { type: "text", value: value() }, on("change", event=> value(event.target.value)))
);
}
```
# Deka DOM Elements
Creating reactive elements, components and Web components using [IDL](https://developer.mozilla.org/en-US/docs/Glossary/IDL)/JavaScript DOM API and signals ([Signals — whats going on behind the scenes | by Ryan Hoffnan |
ITNEXT](https://itnext.io/signals-whats-going-on-behind-the-scenes-ec858589ea63) or [The Evolution of Signals in JavaScript - DEV Community](https://dev.to/this-is-learning/the-evolution-of-signals-in-javascript-8ob)).
Creating reactive elements, components and Web components using [IDL](https://developer.mozilla.org/en-US/docs/Glossary/IDL)/JavaScript DOM API and signals
([Signals — whats going on behind the scenes | by Ryan Hoffnan | ITNEXT](https://itnext.io/signals-whats-going-on-behind-the-scenes-ec858589ea63) or [The Evolution of Signals in JavaScript - DEV Community](https://dev.to/this-is-learning/the-evolution-of-signals-in-javascript-8ob)).
## Inspiration and suggested alternatives
- my previous (mostly internal) library: [jaandrle/dollar_dom_component: Functional DOM components without JSX and virtual DOM.](https://github.com/jaandrle/dollar_dom_component)
- my previous library (mostly used internaly): [jaandrle/dollar_dom_component: Functional DOM components without JSX and virtual DOM.](https://github.com/jaandrle/dollar_dom_component)
- [vanjs-org/van: 🍦 VanJS: World's smallest reactive UI framework. Incredibly Powerful, Insanely Small - Everyone can build a useful UI app in an hour.](https://github.com/vanjs-org/van)
- [hyperhype/hyperscript: Create HyperText with JavaScript.](https://github.com/hyperhype/hyperscript)
- [adamhaile/S: S.js - Simple, Clean, Fast Reactive Programming in Javascript](https://github.com/adamhaile/S) ([adamhaile/surplus: High performance JSX web views for S.js applications](https://github.com/adamhaile/surplus))
- [potch/signals: a small reactive signals library](https://github.com/potch/signals)
## Why an another one?
This library should lies somewhere between van/hyperscript and [solid-js](https://github.com/solidjs/solid) (S).
In the meaning of size, complexity and usability.
This library falls somewhere between van/hyperscript and [solid-js](https://github.com/solidjs/solid) in terms of size, complexity,
and usability.
An another goal is making clear library logic. Starting from pure native JavaScript (DOM API),
then using small utils (`assign`, `S`, …, `el`, …) and end up with way to write complex code.
Therefore, you can use any „internal” function to make live with native JavaScript easier
(`assign`, `classListDeclarative`, `on`, `dispatchEvent`, …, `S`, …) regarding if you
need complex library/framework.
Another goal is to proceed in the best spirit of functional programming. This involves starting with
pure JavaScript (DOM API) and gradually adding auxiliary functions, ranging from “minor” improvements
to the capability of writing complete declarative reactive UI templates.
As consequence of that, it shouldnt be hard to incorporate the library into existing projects.
That can make potecial migration easier.
As a result, any “internal” function (`assign`, `classListDeclarative`, `on`, `dispatchEvent`, …, `S`, …)
can be used independently, although they are primarily designed for use in combination. This can also,
hopefully, help in integrating the library into existing projects.
To balance all requirements above, lots of compromises have been made. To sumarize:
- [x] library size 1015kB minified (10kB originaly)
- [x] allow using *signals optionaly* and allow registering *own signals implementation*
- [x] *no build step required*
- [x] prefer a *declarative/functional* approach
- [x] prefer zero/minimal dependencies
- [ ] support/enhance custom elements (web components)
- [x] support SSR ([jsdom](https://github.com/jsdom/jsdom))
- [ ] WIP provide types
To balance these requirements, numerous compromises have been made. To summarize:
- [ ] Library size: 1015kB minified (the original goal was a maximum of 10kB)
- [x] Optional use of *signals* with the ability to register *your own signals implementation*
- [x] *No build step required*
- [x] Preference for a *declarative/functional* approach
- [x] Focus on zero/minimal dependencies
- [ ] Support for/enhancement of custom elements (web components)
- [x] Support for SSR ([jsdom](https://github.com/jsdom/jsdom))
- [ ] WIP providing types
## First steps
- [**Guide**](https://jaandrle.github.io/deka-dom-el)
- Documentation
- Instalation
- Installation
- npm
- [dist/](dist/) (`https://cdn.jsdelivr.net/gh/jaandrle/deka-dom-el/dist/`…)