dom-event-delegation

Question 1

What is the event.target?

Answer 1

The element that was interacted with

Question 2

Why is it possible to listen for events on one element that actually happen its descendent elements?

Answer 2

Event bubbling

Question 3

What DOM element property tells you what type of element it is?

Answer 3

tagName property

Question 4

What does the element.closest() method take as its argument and what does it return?

Answer 4

Takes a string of valid css selector; returns the closest ancestor element which matches the selectors (null if there is no element)

Question 5

How can you remove an element from the DOM?

Answer 5

remove() method

Question 6

If you wanted to insert new clickable DOM elements into the page using JavaScript, how could you avoid adding an event listener to every new element individually?

Answer 6

Add the event listener to the parent, then check that the target and tag name are the type of element you want it to react to