dom-manipulation

Question 1

What is the className property of element objects?

Answer 1

tells us the current class and allows us to dynamically update class

Question 2

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

Answer 2

class name and assign new name

Question 3

What is the textContent property of element objects?

Answer 3

it shows the text content of that element

Question 4

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

Question 5

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

Answer 5

useful but not always required

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

we would need query selecor

Question 7

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

Answer 7

DOM is dynamic not so good

Question 8

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

Answer 8

DOM is dynamic not so good