February 2019
Beginner to intermediate
284 pages
6h 20m
English
Content preview from Learn Chart.js
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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.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.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.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.
Extracting data with XPath
Since HTML is a structure document, you can use a computer program to navigate that structure and extract selected text nodes, attributes, and elements. Most Web extraction tools are based on XPath: an XML standard that can be used to navigate in a XML structure and select elements, attributes, and text nodes using path notation. Although HTML is not as strict as XML, it has similar structures that can be represented as XPath paths and is supported by many Web scraping tools.
For example, the first lines of the previous web page have the following structure:
<html> <head> <title>Planetary Fact Sheet</title> </head> <body bgcolor=FFFFFF> <p> <hr> <H1>Planetary Fact Sheet - Metric</H1> <hr> <p> <table> ...
It's not ...
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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.