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https://github.com/queckezz/elementx

:zap: Functionally create DOM elements and compose them to a tree quickly
https://github.com/queckezz/elementx

create-element dom element frontend function-composition functional hyperscript svg

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:zap: Functionally create DOM elements and compose them to a tree quickly

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README 

        

![logo](./logo.png)



> ​:zap:​ Create complex [DOM](https://de.wikipedia.org/wiki/Document_Object_Model) elements/trees using a functional approach.



[![npm version][version-image]][version-url]

[![build status][travis-image]][travis-url]

[![test coverage][codecov-image]][codecov-url]

[![dependency status][david-image]][david-url]

[![license][license-image]][license-url]

[![js standard style][standard-image]][standard-url]

[![downloads per month][downloads-image]][downloads-url]



This module provides an alternative to [JSX](https://facebook.github.io/jsx/) or [template strings](https://github.com/shama/bel) for those who want to build up their DOM trees using plain function composition.



```js

const { div, h1, h2, button, ul, li } = require('elementx')



div(

  h1({ class: 'bold' }, 'elementx'),

  h2({ id: 'subtitle' }, 'Create a DOM tree with ease'),

  button({ href: 'http://ghub.io/elementx' }, 'Open'),

  ul(

    ['simple', 'functional', 'fast']

      .map(key => li(key))

  )

)

```



## Features



* **Universal** - Works in Node and Browser

* **SVG Support** - Supports creating SVG Elements

* **Functional** - Since it's just function composition we can arbitrarily compose them

* **Small** Only `1.99 kB` minified and gzipped

* **Interoperability** Can be used with diffing libraries like [morphdom](https://github.com/patrick-steele-idem/morphdom), [nanomorph](https://github.com/yoshuawuyts/nanomorph) or anyhting that uses the DOM



## Installation



```bash

> npm install elementx

```



## Example



```js

const { div, h1, a } = require('elementx')



const node = div(

  h1({ class: 'title' }, 'This is a title'),

  div({ class: 'bg-red' },

    a({ href: 'http://github.com' }, 'Github')

  )

)



// mount the tree to the DOM

document.body.appendChild(node)



console.log(tree.outerHTML)

/*

 * ->

 * 


 *   
This is a title


 *   


 *     Github

 *   


 * 


 */

```



## Getting Started



Each [HTML tag](http://ghub.io/html-tag-names) is exposed as a function when requiring `elementx`.



```js

// using destructuring

const { div, h1, p, button } = require('elementx')

```



These functions have the following syntax:



```js

tag(tagName, attributes, children)

```



All arguments are **optional** with at least **one argument needing to be present**. This kind of function overloading allows you to iterate on your DOM structure really fast and reduce visual noise.



* **tagName** any [valid](https://github.com/wooorm/html-tag-names/blob/master/index.json) html tag

* **attributes** is an object of dom attributes: `{ href: '#header' }`

* **children** can be a string for a text node or an array of nodes



### Lifecycle hooks



This module aims to be just the element creation layer. It can be used with any view framework using DOM as their base element abstraction for diffing. Some libraries like this include [choo](https://github.com/yoshuawuyts/choo) or [inu](https://github.com/ahdinosaur/inu).



### SVG



SVG works as expected. Sets the appropriate namespace for both elements and attributes. All SVG tags can only be created with the `h`-helper:



```js

const { svg } = require('elementx')



const node = svg({

  viewBox: '0 0 0 32 32',

  fill: 'currentColor',

  height: '32px',

  width: '32px'

}, [

  h('use', { 'xlink:href': '#my-id' })

])



document.body.appendChild(node)

```



### Use without helper functions



Sometimes you need to fall back to the traditional `createElement(tag, attributes, children)` (aliased to `h`), for example svg tags.



```js

const h = require('elementx')



const node = h('h1', 'text')



console.log(node.outerHTML)

/*

 * ->

 * 
text


 */

```



### Events



All [HTML DOM Events](https://developer.mozilla.org/en-US/docs/Web/Events) can be attached. The casing of the event name doesn't matter (`onClick`, `onclick`, `ONCLICK` etc.)



```js

const node = h.button({

  onClick: () => console.log('button has been clicked')

})



document.body.appendChild(node)

```



## External tools



* [html-to-hyperscript](html-to-hyperscript.paqmind.com) - Web-Service to convert HTML to hyperscript



## Tests



```bash

> npm test

```



## License



[MIT][license-url]



[travis-image]: https://img.shields.io/travis/queckezz/elementx.svg?style=flat-square

[travis-url]: https://travis-ci.org/queckezz/elementx



[version-image]: https://img.shields.io/npm/v/elementx.svg?style=flat-square

[version-url]: https://npmjs.org/package/elementx



[codecov-image]: https://img.shields.io/codecov/c/github/queckezz/elementx/master.svg?style=flat-square

[codecov-url]: https://codecov.io/github/queckezz/elementx



[downloads-image]: https://img.shields.io/npm/dm/elementx.svg?style=flat-square

[downloads-url]: https://npmjs.org/package/elementx



[david-image]: http://img.shields.io/david/queckezz/elementx.svg?style=flat-square

[david-url]: https://david-dm.org/queckezz/elementx



[standard-image]: https://img.shields.io/badge/code-standard-brightgreen.svg?style=flat-square

[standard-url]: https://github.com/feross/standard



[unfancy-js-image]: https://img.shields.io/badge/javascript-unfancy-ff69b4.svg?style=flat-square

[unfancy-js-url]: https://github.com/yoshuawuyts/tiny-guide-to-non-fancy-node



[license-image]: http://img.shields.io/npm/l/elementx.svg?style=flat-square

[license-url]: ./license