How do I parse a HTML page with Node.js

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You can use the npm modules jsdom and htmlparser to create and parse a DOM in Node.JS.

Other options include:

  • BeautifulSoup for python
  • you can convert you html to xhtml and use XSLT
  • HTMLAgilityPack for .NET
  • CsQuery for .NET (my new favorite)
  • The spidermonkey and rhino JS engines have native E4X support. This may be useful, only if you convert your html to xhtml.

Out of all these options, I prefer using the Node.js option, because it uses the standard W3C DOM accessor methods and I can reuse code on both the client and server. I wish BeautifulSoup’s methods were more similar to the W3C dom, and I think converting your HTML to XHTML to write XSLT is just plain sadistic.

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