dom querying

Question 1

Why do we log things to the console?

Answer 1

to debug

Question 2

What is a “model”?

Answer 2

a dom tree - what the web page loads

Question 3

Which “document” is being referred to in the phrase Document Object Model?

Answer 3

html document

Question 4

What is the word “object” referring to in the phrase Document Object Model?

Answer 4

each node

Question 5

What is a DOM Tree?

Answer 5

a tree structure of the html

Question 6

Give two examples of document methods that retrieve a single element from the DOM.

Answer 6

getelementbyID , queryselector

Question 7

Give one example of a document method that retrieves multiple elements from the DOM at once

Answer 7

getElementByClassName

Question 8

What console method allows you to inspect the properties of a DOM element object?

Answer 8

console.dir

Question 9

Why would a tag need to be placed at the bottom of the HTML content instead of at the top?

Answer 9

gives the HTML time to load before any of the JavaScript loads

Question 10

What does document.querySelector() take as its argument and what does it return?

Answer 10

takes element selected returns the first Element within the document that matches the specified selector,

Question 11

What does document.querySelectorAll() take as its argument and what does it return?

Answer 11

takes in all the elements selected and returns nodelist