Web Scraping With Ruby
Introduction to web scraping with Ruby. How to handle http connections, parse html files for data, best practices, tips and an example project.
To select elements by class using XPath we can match the @class attribute using contains() function or the = operator.
For example, to select <a class="link"></a> we could use //a[@class="link"] or //a[contains(@class, "link")] selectors. See this interactive example:
Note that using contains() might match partial matches. For example, disabled-link would be matched by our contains(@class, "link") selector.
To match by a single class we can use contains(concat(" ", normalize-space(@class), " "), " match ") pattern:
Tip: If you're using Python's parsel package then there's an equivalent shortcut has-class(). For example, //a[has-class("link")]
Introduction to web scraping with Ruby. How to handle http connections, parse html files for data, best practices, tips and an example project.
Introduction to xpath in the context of web-scraping. How to extract data from HTML documents using xpath, best practices and available tools.
Introduction to web scraping with PHP. How to handle http connections, parse html files for data, best practices, tips and an example project.
