Ken Webb 2013-04-13T17:22:17Z
Web App Frameworks as Graph-Based Software - HTML tree
Virtually all Ruby on Rails and other web apps render content in web browsers as HyperText Markup Language (HTML). HTML is based on XML, and takes the form of a tree structure. In a tree, nodes (HTML elements) live inside of other nodes. For example, in the following, title is a child node that lives inside of its head parent node:
<!DOCTYPE html>
<html>
<head>
<title>Hello HTML</title>
</head>
<body>
<p>Hello World!</p>
</body>
</html>
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