DOM-manipulation

Question 1

What is the className property of element objects?

Answer 1

Access or change classname

Question 2

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

Answer 2

className property

Question 3

What is the textContent property of elements objects?

Answer 3

Text content of the nodes and its descendants

Question 4

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

Answer 4

You can use the textContent or innerHTML property

Question 5

Is the event parameter of an event listener callback always useful?

Answer 5

No, 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 because we wouldn’t be able to differentiate between

Question 7

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

Answer 7

JavaScript is the source of truth.