React-Events

Question 1

What is an “event” in React?

Answer 1

events are usually user interactions with a web app that trigger a change to the web app

Question 2

What is an “event handler”? Which component declares the handler?

Answer 2

They are custom functions that are called in response to user interactions on the web app. The parent component declares event handlers

Question 3

How do you pass an event handler to a React component?

Answer 3

First you have to define the event handler function then pass it as a prop to the jsx element.

Question 4

What is the naming convention for event handlers?

Answer 4

Usually it will named with the word handle followed by the event type

Question 5

What is an “event handler prop”? Which component declares the prop?

Answer 5

An event handler prop is a prop that is passed an event handler from a different component usually from it’s parent component. The child component declares the prop

Question 6

What are some custom event handler props a component may wish to define?

Answer 6

the onClick event handler prop

Question 7

What is the naming convention for custom event handler props?

Answer 7

based on app-specific interactions i.e onPlayMovie, onUploadImage