Learn JavaScript from Scratch JavaScript for Everyone - The Document Object Model (DOM)

The video tutorial explains how browsers use HTML elements to create a tree hierarchy known as the Document Object Model (DOM). It demonstrates the structure of the DOM using VS Code and discusses the relationships between nodes and elements. The tutorial emphasizes the importance of understanding the DOM for selecting and modifying elements in web development, preparing viewers for future lessons on element selection by ID.

What does the browser create using HTML elements when a page is loaded?

• A linear list

• A tree hierarchy

• A circular graph

• A random structure

Which of the following is a standard part of every HTML document?

• Head and Body

• Sidebar

• Navigation Bar

• Footer

In the context of the DOM, what is a node?

• A server-side script

• A type of CSS style

• An HTML element

• A JavaScript function

What is the relationship between a TR element and a TD element in a table?

• Sibling

• Cousin

• Parent-Child

• Unrelated

Why is understanding nodes important in JavaScript?

• For database management

• For server-side scripting

• For selecting and modifying elements

• For styling elements