January 2019
Beginner
132 pages
3h 14m
English
Content preview from Go Web Scraping Quick Start Guide
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Searching using XPath queries
In the previous examples for parsing HTML documents, we treated HTML simply as searchable text, where you can discover information by looking for specific strings. Fortunately, HTML documents actually have a structure. You can see that each set of tags can be viewed as some object, called a node, which can, in turn, contain more nodes. This creates a hierarchy of root, parent, and child nodes, providing a structured document. In particular, HTML documents are very similar to XML documents, although they are not fully XML-compliant. Because of this XML-like structure, we can search for content in the pages using XPath queries.
XPath queries define a way to traverse the hierarchy of nodes in an XML document, and ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.