<h1 align="center">cheerio</h1>
<h5 align="center">Fast, flexible & lean implementation of core jQuery designed specifically for the server.</h5>
<div align="center">
<a href="http://travis-ci.org/cheeriojs/cheerio">
<img src="https://secure.travis-ci.org/cheeriojs/cheerio.svg?branch=master" alt="Travis CI" />
</a>
<a href="https://coveralls.io/r/cheeriojs/cheerio">
<img src="http://img.shields.io/coveralls/cheeriojs/cheerio.svg?branch=master&style=flat" alt="Coverage" />
</a>
<a href="https://gitter.im/cheeriojs/cheerio?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge">
<img src="https://badges.gitter.im/Join%20Chat.svg" alt="Join the chat at https://gitter.im/cheeriojs/cheerio" />
</a>
<a href="#backers">
<img src="https://opencollective.com/cheerio/backers/badge.svg" alt="OpenCollective backers"/>
</a>
<a href="#sponsors">
<img src="https://opencollective.com/cheerio/sponsors/badge.svg" alt="OpenCollective sponsors"/>
</a>
</div>
<br />
```js
const cheerio = require('cheerio')
const $ = cheerio.load('<h2 class="title">Hello world</h2>')
$('h2.title').text('Hello there!')
$('h2').addClass('welcome')
$.html()
//=> <html><head></head><body><h2 class="title welcome">Hello there!</h2></body></html>
```
## Installation
`npm install cheerio`
## Features
__❤ Familiar syntax:__
Cheerio implements a subset of core jQuery. Cheerio removes all the DOM inconsistencies and browser cruft from the jQuery library, revealing its truly gorgeous API.
__ϟ Blazingly fast:__
Cheerio works with a very simple, consistent DOM model. As a result parsing, manipulating, and rendering are incredibly efficient. Preliminary end-to-end benchmarks suggest that cheerio is about __8x__ faster than JSDOM.
__❁ Incredibly flexible:__
Cheerio wraps around [parse5](https://github.com/inikulin/parse5) parser and can optionally use @FB55's forgiving [htmlparser2](https://github.com/fb55/htmlparser2/). Cheerio can parse nearly any HTML or XML document.
## Cheerio is not a web browser
Cheerio parses markup and provides an API for traversing/manipulating the resulting data structure. It does not interpret the result as a web browser does. Specifically, it does *not* produce a visual rendering, apply CSS, load external resources, or execute JavaScript. If your use case requires any of this functionality, you should consider projects like [PhantomJS](http://phantomjs.org/) or [JSDom](https://github.com/tmpvar/jsdom).
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## API
### Markup example we'll be using:
```html
<ul id="fruits">
<li class="apple">Apple</li>
<li class="orange">Orange</li>
<li class="pear">Pear</li>
</ul>
```
This is the HTML markup we will be using in all of the API examples.
### Loading
First you need to load in the HTML. This step in jQuery is implicit, since jQuery operates on the one, baked-in DOM. With Cheerio, we need to pass in the HTML document.
This is the _preferred_ method:
```js
const cheerio = require('cheerio');
const $ = cheerio.load('<ul id="fruits">...</ul>');
```
Optionally, you can also load in the HTML by passing the string as the context:
```js
const $ = require('cheerio');
$('ul', '<ul id="fruits">...</ul>');
```
Or as the root:
```js
const $ = require('cheerio');
$('li', 'ul', '<ul id="fruits">...</ul>');
```
If you need to modify parsing options for XML input, you may pass an extra
object to `.load()`:
```js
const $ = cheerio.load('<ul id="fruits">...</ul>', {
xml: {
normalizeWhitespace: true,
}
});
```
The options in the `xml` object are taken directly from [htmlparser2](https://github.com/fb55/htmlparser2/wiki/Parser-options), therefore any options that can be used in `htmlparser2` are valid in cheerio as well. The default options are:
```js
{
withDomLvl1: true,
normalizeWhitespace: false,
xmlMode: true,
decodeEntities: true
}
```
For a full list of options and their effects, see [this](https://github.com/fb55/DomHandler) and
[htmlparser2's options](https://github.com/fb55/htmlparser2/wiki/Parser-options).
Some users may wish to parse markup with the `htmlparser2` library, and
traverse/manipulate the resulting structure with Cheerio. This may be the case
for those upgrading from pre-1.0 releases of Cheerio (which relied on
`htmlparser2`), for those dealing with invalid markup (because `htmlparser2` is
more forgiving), or for those operating in performance-critical situations
(because `htmlparser2` may be faster in some cases). Note that "more forgiving"
means `htmlparser2` has error-correcting mechanisms that aren't always a match
for the standards observed by web browsers. This behavior may be useful when
parsing non-HTML content.
To support these cases, `load` also accepts a `htmlparser2`-compatible data
structure as its first argument. Users may install `htmlparser2`, use it to
parse input, and pass the result to `load`:
```js
// Usage as of htmlparser2 version 3:
const htmlparser2 = require('htmlparser2');
const dom = htmlparser2.parseDOM(document, options);
const $ = cheerio.load(dom);
```
### Selectors
Cheerio's selector implementation is nearly identical to jQuery's, so the API is very similar.
#### $( selector, [context], [root] )
`selector` searches within the `context` scope which searches within the `root` scope. `selector` and `context` can be a string expression, DOM Element, array of DOM elements, or cheerio object. `root` is typically the HTML document string.
This selector method is the starting point for traversing and manipulating the document. Like jQuery, it's the primary method for selecting elements in the document, but unlike jQuery it's built on top of the CSSSelect library, which implements most of the Sizzle selectors.
```js
$('.apple', '#fruits').text()
//=> Apple
$('ul .pear').attr('class')
//=> pear
$('li[class=orange]').html()
//=> Orange
```
### Attributes
Methods for getting and modifying attributes.
#### .attr( name, value )
Method for getting and setting attributes. Gets the attribute value for only the first element in the matched set. If you set an attribute's value to `null`, you remove that attribute. You may also pass a `map` and `function` like jQuery.
```js
$('ul').attr('id')
//=> fruits
$('.apple').attr('id', 'favorite').html()
//=> <li class="apple" id="favorite">Apple</li>
```
> See http://api.jquery.com/attr/ for more information
#### .prop( name, value )
Method for getting and setting properties. Gets the property value for only the first element in the matched set.
```js
$('input[type="checkbox"]').prop('checked')
//=> false
$('input[type="checkbox"]').prop('checked', true).val()
//=> ok
```
> See http://api.jquery.com/prop/ for more information
#### .data( name, value )
Method for getting and setting data attributes. Gets or sets the data attribute value for only the first element in the matched set.
```js
$('<div data-apple-color="red"></div>').data()
//=> { appleColor: 'red' }
$('<div data-apple-color="red"></div>').data('apple-color')
//=> 'red'
const apple = $('.apple').data('kind', 'mac')
apple.data('kind')
//=> 'mac'
```
> See http://api.jquery.com/data/ for more information
#### .val( [value] )
Method for getting and setting the value of input, select, and textarea. Note: Support for `map`, and `function` has not been added yet.
```js
$('input[type="text"]').val()
//=> input_text
$('input[type="text"]').val('test').html()
//=> <input type="text" value="test"/>
```
#### .removeAttr( name )
Method for removing attributes by `name`.
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白菜的记录工具2021-07-30确实可以有wxss- 叶隐霜2020-12-07我试过可以有wxss，就是得一个个下载npm包，
tophunker1392022-06-20已下载试用了，可以用- lin9681102021-06-23打开就可以用
WWCZ222020-11-07有个锤wxss文件。2020年11月7日，测试这个工具毫无用处，浪费积分，不建议下载
背着行囊去远方
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