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Question 1

What is the DOM?

Answer 1

The DOM is a W3C (World Wide Web Consortium) standard.

The DOM defines a standard for accessing documents:

“The W3C Document Object Model (DOM) is a platform and language-neutral interface that allows programs and scripts to dynamically access and update the content, structure, and style of a document.”

The W3C DOM standard is separated into 3 different parts:

Core DOM - standard model for all document types
XML DOM - standard model for XML documents
HTML DOM - standard model for HTML documents

Question 2

What does document.querySelector() return?

Answer 2

Returns the first matching Element node within the node’s subtree. If no matching node is found, null is returned.

Question 3

How do you modify the text of elements on the DOM?

Answer 3

The textContent property of the Node interface represents the text content of the node and its descendants. .textContent

Question 4

What arguments does the addEventListener method take?

Answer 4

an event and a function (click, myClickFunction)

Question 5

Give five examples of JavaScript events that can be listened for.

Answer 5

click, mousemove, contentload, mouseover, keydown

Question 6

What does document.createElement() take as its argument?