Parsing Performance
- parse5:
parse5is one of the fastest HTML parsers available, especially for large documents. It is designed for performance and efficiency, making it ideal for applications that need to parse HTML quickly and with minimal resource usage. - jsdom:
jsdomis slower compared to other libraries due to its comprehensive implementation of web standards. However, it provides a fully-featured DOM environment, which is beneficial for applications that require accurate simulation of browser behavior. - cheerio:
cheeriois fast for parsing and manipulating HTML, but it relies on a DOM structure created by another parser (likehtmlparser2). The overall performance depends on the parser used, butcheerioitself is optimized for quick DOM manipulation. - domino:
dominoprovides good performance for parsing HTML and XML documents. It is lightweight and designed to be efficient, making it suitable for applications that require quick and simple DOM manipulation without significant overhead.
DOM Manipulation
- parse5:
parse5focuses more on parsing than manipulation. It provides a DOM-like structure that can be manipulated, but it does not offer a dedicated API for manipulation. It is best used in conjunction with other libraries for manipulating the parsed content. - jsdom:
jsdomoffers a complete and standards-compliant DOM API, allowing for extensive manipulation of HTML documents. It supports all DOM features, making it suitable for complex manipulation tasks, testing, and scenarios that require full compliance with web standards. - cheerio:
cheerioexcels at DOM manipulation with its jQuery-like API, allowing for easy traversal, modification, and extraction of elements. It is particularly effective for tasks like web scraping and data extraction, where quick and intuitive manipulation is required. - domino:
dominoprovides a simple and standards-compliant API for DOM manipulation. While it is not as feature-rich ascheerio, it allows for basic manipulation of HTML and XML documents, making it suitable for lightweight tasks.
Standards Compliance
- parse5:
parse5is fully compliant with the HTML5 specification. It focuses on accurately parsing and serializing HTML according to the standards, making it a reliable choice for applications that require strict adherence to HTML5. - jsdom:
jsdomis one of the most standards-compliant DOM implementations available for Node.js. It strives to implement the full range of web standards, including HTML, CSS, and JavaScript, making it ideal for testing and applications that require high fidelity to browser behavior. - cheerio:
cheeriois not a full standards-compliant DOM implementation; it focuses on providing a subset of the DOM API for manipulation. It is designed to be compatible with jQuery, which makes it easy to use for tasks that do not require full compliance. - domino:
dominoprovides a standards-compliant DOM implementation for HTML and XML. It aims to adhere to web standards, making it suitable for projects that require compliant DOM manipulation without the complexity of a full browser environment.
Use Case Suitability
- parse5:
parse5is well-suited for applications that require fast and efficient HTML parsing, serialization, and manipulation. It is ideal for tools that need to process HTML documents quickly while adhering to the HTML5 specification, making it a great choice for parsers, linters, and other processing tools. - jsdom:
jsdomis ideal for testing, server-side rendering, and applications that require a complete and accurate simulation of a web browser environment. It is particularly useful for frameworks and libraries that need to run in a Node.js environment while maintaining full compatibility with web standards. - cheerio:
cheeriois best suited for web scraping, data extraction, and server-side HTML manipulation tasks where a lightweight and fast solution is needed. Its jQuery-like API makes it easy to use for quick DOM manipulations without the need for a full browser environment. - domino:
dominois suitable for projects that require a lightweight and standards-compliant DOM implementation for simple HTML and XML manipulation. It is ideal for applications that do not need the full complexity of a browser environment but still require compliant DOM features.
Ease of Use: Code Examples
- parse5:
Parsing HTML with
parse5const parse5 = require('parse5'); const html = '<!DOCTYPE html><html><body><h1>Hello, World!</h1></body></html>'; const document = parse5.parse(html); const h1 = document.childNodes[1].childNodes[1].childNodes[1]; h1.childNodes[0].value = 'Hello, parse5!'; const serialized = parse5.serialize(h1); console.log(serialized); - jsdom:
Testing Example with
jsdomconst { JSDOM } = require('jsdom'); const dom = new JSDOM('<!DOCTYPE html><html><body><h1>Hello, World!</h1></body></html>'); const h1 = dom.window.document.querySelector('h1'); h1.textContent = 'Hello, jsdom!'; console.log(dom.serialize()); - cheerio:
Web Scraping Example with
cheerioconst cheerio = require('cheerio'); const axios = require('axios'); async function scrapeWebsite(url) { const { data } = await axios.get(url); const $ = cheerio.load(data); const titles = []; $('h1, h2, h3').each((index, element) => { titles.push($(element).text()); }); return titles; } scrapeWebsite('https://example.com').then(titles => { console.log('Scraped Titles:', titles); }); - domino:
Simple DOM Manipulation with
dominoconst domino = require('domino'); const doc = domino.createDocument('<!DOCTYPE html><html><body><h1>Hello, World!</h1></body></html>'); const h1 = doc.querySelector('h1'); h1.textContent = 'Hello, Domino!'; console.log(doc.documentElement.outerHTML);
