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# dom-nodes
[![Build Status][travis-image]][travis-url]
[![NPM version][npm-version-image]][npm-url]
[![NPM downloads][npm-downloads-image]][npm-url]
[![MIT License][license-image]][license-url]
## Installation
```bash
$ npm i dom-nodes -S
```
## Usage
```js
import {isVoid} from 'dom-nodes'
isVoid('div') // false
isVoid('img') // true
```
`dom-nodes` exports all the methods [listed below](#API) giving you some simple tests to understand which kind of node you are dealing with.
This project includes [html-tags](https://github.com/sindresorhus/html-tags) and [svg-tag-names](https://github.com/wooorm/svg-tag-names) directly in its source code avoiding to rely on third party npm modules for such simple list of strings.
This project couldn't have been made without the projects above!
[travis-image]: https://img.shields.io/travis/riot/dom-nodes.svg?style=flat-square
[travis-url]: https://travis-ci.org/riot/dom-nodes
[license-image]: http://img.shields.io/badge/license-MIT-000000.svg?style=flat-square
[license-url]: LICENSE
[npm-version-image]: http://img.shields.io/npm/v/dom-nodes.svg?style=flat-square
[npm-downloads-image]: http://img.shields.io/npm/dm/dom-nodes.svg?style=flat-square
[npm-url]: https://npmjs.org/package/dom-nodes
## API
<!-- Generated by documentation.js. Update this documentation by updating the source code. -->
#### Table of Contents
- [VOID_SVG_TAGS_LIST](#void_svg_tags_list)
- [HTML_ELEMENTS_HAVING_VALUE_ATTRIBUTE_LIST](#html_elements_having_value_attribute_list)
- [SVG_TAGS_LIST](#svg_tags_list)
- [VOID_HTML_TAGS_LIST](#void_html_tags_list)
- [HTML_TAGS_LIST](#html_tags_list)
- [BOOLEAN_ATTRIBUTES_LIST](#boolean_attributes_list)
- [HTML_TAGS_RE](#html_tags_re)
- [SVG_TAGS_RE](#svg_tags_re)
- [VOID_HTML_TAGS_RE](#void_html_tags_re)
- [VOID_SVG_TAGS_RE](#void_svg_tags_re)
- [HTML_ELEMENTS_HAVING_VALUE_ATTRIBUTE_RE](#html_elements_having_value_attribute_re)
- [BOOLEAN_ATTRIBUTES_RE](#boolean_attributes_re)
- [isVoid](#isvoid)
- [Parameters](#parameters)
- [Examples](#examples)
- [isHtml](#ishtml)
- [Parameters](#parameters-1)
- [Examples](#examples-1)
- [isSvg](#issvg)
- [Parameters](#parameters-2)
- [Examples](#examples-2)
- [isCustom](#iscustom)
- [Parameters](#parameters-3)
- [Examples](#examples-3)
- [hasValueAttribute](#hasvalueattribute)
- [Parameters](#parameters-4)
- [Examples](#examples-4)
- [isBoolAttribute](#isboolattribute)
- [Parameters](#parameters-5)
- [Examples](#examples-5)
### VOID_SVG_TAGS_LIST
SVG void elements that cannot be auto-closed and shouldn't contain child nodes.
Type: [Array](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array)
### HTML_ELEMENTS_HAVING_VALUE_ATTRIBUTE_LIST
List of html elements where the value attribute is allowed
Type: [Array](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array)
### SVG_TAGS_LIST
- **See: <https://github.com/wooorm/svg-tag-names>**
List of all the available svg tags
Type: [Array](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array)
### VOID_HTML_TAGS_LIST
- **See: <http://www.w3.org/TR/html-markup/syntax.html#syntax-elements>**
- **See: <http://www.w3.org/TR/html5/syntax.html#void-elements>**
HTML void elements that cannot be auto-closed and shouldn't contain child nodes.
Type: [Array](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array)
### HTML_TAGS_LIST
- **See: <https://github.com/sindresorhus/html-tags>**
List of all the html tags
Type: [Array](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array)
### BOOLEAN_ATTRIBUTES_LIST
- **See: <https://www.w3.org/TR/html5/infrastructure.html#sec-boolean-attributes>**
List of all boolean HTML attributes
Type: [RegExp](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp)
### HTML_TAGS_RE
Regex matching all the html tags ignoring the cases
Type: [RegExp](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp)
### SVG_TAGS_RE
Regex matching all the svg tags ignoring the cases
Type: [RegExp](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp)
### VOID_HTML_TAGS_RE
Regex matching all the void html tags ignoring the cases
Type: [RegExp](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp)
### VOID_SVG_TAGS_RE
Regex matching all the void svg tags ignoring the cases
Type: [RegExp](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp)
### HTML_ELEMENTS_HAVING_VALUE_ATTRIBUTE_RE
Regex matching all the html tags where the value tag is allowed
Type: [RegExp](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp)
### BOOLEAN_ATTRIBUTES_RE
Regex matching all the boolean attributes
Type: [RegExp](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/RegExp)
### isVoid
True if it's a self closing tag
#### Parameters
- `tag` **[string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String)** test tag
#### Examples
```javascript
isVoid('meta') // true
isVoid('circle') // true
isVoid('IMG') // true
isVoid('div') // false
isVoid('mask') // false
```
Returns **[boolean](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean)** true if void
### isHtml
True if it's a known HTML tag
#### Parameters
- `tag` **[string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String)** test tag
#### Examples
```javascript
isHtml('img') // true
isHtml('IMG') // true
isHtml('Img') // true
isHtml('path') // false
```
Returns **[boolean](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean)** true if html tag
### isSvg
True if it's a known SVG tag
#### Parameters
- `tag` **[string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String)** test tag
#### Examples
```javascript
isSvg('g') // true
isSvg('radialGradient') // true
isSvg('radialgradient') // true
isSvg('div') // false
```
Returns **[boolean](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean)** true if svg tag
### isCustom
True if it's not SVG nor a HTML known tag
#### Parameters
- `tag` **[string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String)** test tag
#### Examples
```javascript
isCustom('my-component') // true
isCustom('div') // false
```
Returns **[boolean](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean)** true if custom element
### hasValueAttribute
True if the value attribute is allowed on this tag
#### Parameters
- `tag` **[string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String)** test tag
#### Examples
```javascript
hasValueAttribute('input') // true
hasValueAttribute('div') // false
```
Returns **[boolean](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean)** true if the value attribute is allowed
### isBoolAttribute
True if it's a boolean attribute
#### Parameters
- `attribute` **[string](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/String)** test attribute
#### Examples
```javascript
isBoolAttribute('selected') // true
isBoolAttribute('class') // false
```
Returns **[boolean](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean)** true if the attribute is a boolean type