DOM Tree Study Notes

Brief notes on how browsers parse HTML, create a tree of DOM nodes, and provide JavaScript with read/write interfaces, as a starting point for learning the DOM concept.

7/21/2025

#DOM#bx#Security Analysis#JavaScript

DOM Tree Study Notes

The DOM (Document Object Model) is a tree structure that the browser creates by parsing an HTML document. Each HTML element is a node in the tree. When a webpage loads, the browser:

Parses the HTML document

Creates the DOM tree structure

Provides JavaScript with an interface for reading and writing