Scrimba Course FCC

Question 1

Why do we need to import React from “react”

Answer 1

React is what defines JSX

Question 2

What is wrong with this code:

const page = (
<h1>Hello</h1>
<p>This is my website!</p>
)

Answer 2

We need our jsx nested under a single parent element

Question 3

What does it mean for something to be “declarative” instead of “imperative”?

Answer 3

Declarative means I can tell the computer WHAT to do
and expect it to handle the details. Imperative means I need
to tell it HOW to do each step.

Question 4

What does it mean for something to be “composable”?

Answer 4

We have small pieces that we can put together to make something
larger/greater than the individual pieces.

Question 5

How to use Vite?

Answer 5

‘npm create vite@latest’
give project name
select framework
select varient
run commands
‘npm run dev’ to run

Question 6

How to use map on an array

Answer 6

const arr = theArr.map(arrItem => do something)

Question 7

What is state?

Answer 7

State is a way for react to remember saved values from within a component.

Question 8

What do you get when you log React.useState()?

Answer 8

You get an array of “[undefined, f()]”

Question 9

How do you destruction the React.useState() array?

Answer 9

const [someName, setSomeName] = React.useState(“the name”);
console.log(someName), result: the name