dom creation

Question 1

Does the document.createElement() method insert a new element into the page?

Answer 1

no, it only creates it

Question 2

How do you add an element as a child to another element?

Answer 2

parent.appendChild(child)

Question 3

What do you pass as the arguments to the element.setAttribute() method?

Answer 3

attribute name, attribute value (strings)

Question 4

What steps do you need to take in order to insert a new element into the page?

Answer 4

create the element, document.createElement(‘type’)

give it content, document.createTextNode(‘text’)

add the text node to the element node, element.appendChild(textNode)

add it to the dom, parent.appendChild(child)

Question 5

What is the textContent property of an element object for?

Answer 5

retrieving and setting the text of an html element

Question 6

Name two ways to set the class attribute of a DOM element.

Answer 6

1. element.className

2. element.setAttribute(‘class’, ‘className’)

Question 7

What are two advantages of defining a function to do create something (like the work of creating a DOM tree)?

Answer 7

1. reusability

2. versatility, can pass different arguments as needed