Challenge
Task
Now that we have learned the basics and the needed starting point for Functional Components in React, we will now go over a challenge that will help you get practical experience in creating components and getting familiar with coding components from scratch.
Your tasks are as follows:
-
Initialize the count to 0 and create a function to increment it.
-
Use the
useEffect
hook to log a message every time the count is updated. -
Fill in with the function to multiply count by and return that value.
-
Add two paragraphs here displaying the current count and the double count.
-
Set the onclick method to a function that adds one to the count by calling
setCount
.
Hints:
-
Use the
useState
hook to initialize the value to zero. -
Use the
console.log(count)
in theuseEffect
hook and have thecount
variable as a dependency. -
Create an arrow function that simply returns
count * 2
. -
Pass in
count + 1
to thesetCount
function which should be called in thebutton
.
Grazie per i tuoi commenti!
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Challenge
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Task
Now that we have learned the basics and the needed starting point for Functional Components in React, we will now go over a challenge that will help you get practical experience in creating components and getting familiar with coding components from scratch.
Your tasks are as follows:
-
Initialize the count to 0 and create a function to increment it.
-
Use the
useEffect
hook to log a message every time the count is updated. -
Fill in with the function to multiply count by and return that value.
-
Add two paragraphs here displaying the current count and the double count.
-
Set the onclick method to a function that adds one to the count by calling
setCount
.
Hints:
-
Use the
useState
hook to initialize the value to zero. -
Use the
console.log(count)
in theuseEffect
hook and have thecount
variable as a dependency. -
Create an arrow function that simply returns
count * 2
. -
Pass in
count + 1
to thesetCount
function which should be called in thebutton
.
Grazie per i tuoi commenti!