DOM EVENTS

Question 1

What is the purpose of events and event handling?

Answer 1

Once an event occurs a callback occurs of the event handling

The action follows the event

Question 2

Are all possible parameters required to use a JavaScript method or function?

Answer 2

No, event listener

Question 3

What method of element objects lets you set up a function to be called when a specific type of event occurs?

Answer 3

addEventListener

Question 4

What is a callback function?

Answer 4

function being passed to another function

Ex - callback funcion occurs when event takes place

Question 5

What object is passed into an event listener callback when the event fires?

Answer 5

event

Question 6

What is the event.target? If you weren’t sure, how would you check? Where could you get more information about it?

Answer 6

Event target gives the property of which object the event will occur too
console.log

Question 7

What is the difference between these two snippets of code?

element.addEventListener(‘click’, handleClick)

element.addEventListener(‘click’, handleClick())

Answer 7

2nd gets callled immediately and is replaced by its return value