DOM-manipulation

Question 1

What is theclassNameproperty of element objects?

Answer 1

gets and sets the value of theclassattributeof the specified element.

Question 2

How do you update the CSS class attribute of an element using JavaScript?

Answer 2

className property

Question 3

What is thetextContentproperty of element objects?

Answer 3

collects or update just the text that is in the containing element (and its children)

Question 4

How do you update the text within an element using JavaScript?

Answer 4

textContent property

Question 5

Is theeventparameter of an event listener callback always useful?

Answer 5

Not always

Question 6

Would this assignment be simpler or more complicated if we didn’t use a variable to keep track of the number of clicks?

Answer 6

More complicated.

Question 7

Why is storing information about a program in variables better than only storing it in the DOM?

Answer 7

You can access the information again by using the variable.