Parsing Capabilities
- dom-serializer:
dom-serializeris not a parsing library. It focuses on serializing DOM nodes into HTML or XML strings, preserving the structure and content of the nodes. - htmlparser2:
htmlparser2is a fast and flexible parser for HTML and XML. It supports both streaming and DOM-like parsing, allowing for efficient handling of large documents and real-time data. - xmlbuilder:
xmlbuilderis not a parsing library; it is designed for creating XML documents. It provides an API for building XML structures programmatically, but it does not parse existing XML. - cheerio:
cheeriodoes not perform parsing itself; it relies on other parsers (likehtmlparser2) to convert HTML into a DOM-like structure. Once parsed, it provides a jQuery-like API for manipulation.
DOM Manipulation
- dom-serializer:
dom-serializerdoes not provide DOM manipulation capabilities. It is solely focused on serializing DOM nodes into strings. - htmlparser2:
htmlparser2does not offer built-in DOM manipulation features. It is primarily a parsing library, but it can be used in conjunction with other libraries that provide manipulation capabilities. - xmlbuilder:
xmlbuilderallows for manipulation of XML structures as you build them. You can add elements, attributes, and text content dynamically, but it does not manipulate existing XML documents. - cheerio:
cheerioexcels at DOM manipulation, providing a rich set of methods for traversing, modifying, and querying the DOM. Its API is similar to jQuery, making it easy to use for those familiar with jQuery.
Serialization
- dom-serializer:
dom-serializerspecializes in serialization, providing precise control over how DOM nodes are converted to HTML or XML strings. It handles various node types and preserves their attributes and content. - htmlparser2:
htmlparser2does not handle serialization. It is focused on parsing HTML and XML efficiently, leaving serialization to other libraries or components. - xmlbuilder:
xmlbuilderprovides serialization as part of its XML building process. Once the XML structure is created, it can be serialized to a string with a simple method call. - cheerio:
cheerioprovides serialization capabilities, allowing you to convert manipulated HTML back into a string. However, it is not its primary focus, and the serialization quality depends on the underlying parser.
Use Case
- dom-serializer:
dom-serializeris best suited for applications that need to serialize DOM nodes to HTML or XML, such as custom rendering engines or data processing tools. - htmlparser2:
htmlparser2is perfect for parsing large HTML or XML documents quickly and efficiently, making it suitable for web crawlers, data extraction, and real-time parsing applications. - xmlbuilder:
xmlbuilderis designed for generating XML documents programmatically, making it useful for applications that need to create well-structured XML data for APIs, configuration files, or data interchange. - cheerio:
cheeriois ideal for web scraping, server-side DOM manipulation, and any task that requires jQuery-like syntax for HTML manipulation in a Node.js environment.
Ease of Use: Code Examples
- dom-serializer:
Serializing DOM Nodes with
dom-serializerconst { DOMImplementation } = require('xmldom'); const { serialize } = require('dom-serializer'); const doc = new DOMImplementation().createDocument(); const root = doc.createElement('root'); doc.appendChild(root); root.appendChild(doc.createTextNode('Hello, World!')); const html = serialize(root); console.log(html); - htmlparser2:
Parsing HTML with
htmlparser2const { Parser } = require('htmlparser2'); const parser = new Parser({ onopentag(name, attributes) { console.log(`Opened tag: ${name}`); }, ontext(text) { console.log(`Text: ${text}`); }, onclosetag(tagName) { console.log(`Closed tag: ${tagName}`); }, }); parser.write('<div>Hello <b>World</b></div>'); parser.end(); - xmlbuilder:
Creating XML with
xmlbuilderconst { create } = require('xmlbuilder'); const xml = create('root') .ele('child', { attr: 'value' }, 'Content') .end({ pretty: true }); console.log(xml); - cheerio:
Web Scraping with
cheerioconst cheerio = require('cheerio'); const axios = require('axios'); async function scrapeWebsite(url) { const { data } = await axios.get(url); const $ = cheerio.load(data); const title = $('title').text(); console.log(`Title: ${title}`); } scrapeWebsite('https://example.com');