# Fast HTML Parser [![NPM version](https://badge.fury.io/js/node-html-parser.png)](http://badge.fury.io/js/node-html-parser) [![Build Status](https://travis-ci.org/taoqf/node-html-parser.svg?branch=master)](https://travis-ci.org/taoqf/node-html-parser)
Fast HTML Parser is a _very fast_ HTML parser. Which will generate a simplified
DOM tree, with basic element query support.
Per the design, it intends to parse massive HTML files in lowest price, thus the
performance is the top priority. For this reason, some malformatted HTML may not
be able to parse correctly, but most usual errors are covered (eg. HTML4 style
no closing `
`, `` etc).
## Install
```shell
npm install --save node-html-parser
```
## Performance
Faster than htmlparser2!
```shell
node-html-parser:1.94548 ms/file ± 2.15709
libxmljs :5.28893 ms/file ± 3.69863
htmlparser :24.9625 ms/file ± 168.380
htmlparser2 :3.34011 ms/file ± 4.76959
parse5 :13.9589 ms/file ± 9.84068
high5 :6.98078 ms/file ± 4.47575
```
Tested with [htmlparser-benchmark](https://github.com/AndreasMadsen/htmlparser-benchmark).
## Usage
```ts
import { parse } from 'node-html-parser';
const root = parse('');
console.log(root.firstChild.structure);
// ul#list
// li
// #text
console.log(root.querySelector('#list'));
// { tagName: 'ul',
// rawAttrs: 'id="list"',
// childNodes:
// [ { tagName: 'li',
// rawAttrs: '',
// childNodes: [Object],
// classNames: [] } ],
// id: 'list',
// classNames: [] }
console.log(root.toString());
//
root.set_content('Hello World');
root.toString(); // Hello World
```
```js
var HTMLParser = require('node-html-parser');
var root = HTMLParser.parse('');
```
## HTMLElement Methods
### parse(data[, options])
Parse given data, and return root of the generated DOM.
- **data**, data to parse
- **options**, parse options
```js
{
lowerCaseTagName: false, // convert tag name to lower case (hurt performance heavily)
script: false, // retrieve content in |