HTML CSS and JavaScript for Beginners - A Web Design Course - Document Object Model

The video tutorial explains the Document Object Model (DOM) and its methods, focusing on how to access, create, and manipulate HTML elements using JavaScript. It covers creating and appending elements dynamically, using querySelector and getElementById to select elements, and outputting values to HTML. The tutorial concludes with a challenge to update HTML content, followed by a solution demonstration.

What is the Document Object Model (DOM) primarily used for?

• To style web pages

• To represent and interact with HTML documents

• To store user data

• To manage server-side operations

Which method is used to create a new HTML element in the DOM?

• querySelector

• getElementById

• appendChild

• createElement

How can you select an element by its ID in the DOM?

• getElementsByTagName

• getElementsByClassName

• getElementById

• querySelector

What is the purpose of the querySelector method?

• To select elements by class name

• To select the first element that matches a CSS selector

• To select elements by tag name

• To select elements by attribute

What happens when you click the button in the provided example?

• The page reloads

• The input value is logged to the console

• The input value is displayed in an H2 element

• The input value is cleared

Which method is used to update the inner HTML of an element?

• innerHTML

• textContent

• appendChild

• setAttribute

What is the main task in the final challenge of the lesson?

• Create a new HTML element

• Log input values to the console

• Update the content of an H2 element with input value

• Change the style of an element