HTML for Webscraping
We covered the basics of HTML for web scraping. Here's a summary of what we discussed:
Understanding HTML Structure:
- HTML documents consist of elements enclosed in angle brackets called tags.
- The
<html>element is the root element of an HTML page. - The
<head>element contains meta information about the HTML page. - The
<body>element contains the content displayed on the web page. - Tags like
<h3>indicate headings, and<p>indicate paragraphs.
Composition of HTML Tags:
- Tags have an opening (
<tag>) and a closing (</tag>) tag. - Tags may contain attributes, consisting of a name and value, such as
<a href="url">.
- Tags have an opening (
HTML Trees:
- HTML documents can be represented as trees, with nested tags as branches.
- Tags can have children, siblings, and parents, forming a hierarchical structure.
HTML Tables:
- Tables in HTML are defined with the
<table>tag. - Each table row is defined with the
<tr>tag, and cells are defined with<td>tags. - Tables may also have a header row defined with the
<th>tag.
- Tables in HTML are defined with the
After understanding these concepts, we can extract data from a webpage using web scraping techniques. This involves parsing the HTML structure of the webpage to locate and extract specific data elements, such as player names and salaries from a sports webpage.
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