How to use useState React hook

Find out what the useState React hook is for and how to use it!

Look at mineIntroduction to React hooksFirst of all, if you are a novice to them.

One of the React hooks I use the most isuseState.

import React, { useState } from 'react'

useuseState()API, you can create a new state variable and have a way to change it.useState()Accepts the initial value of the state item and returns an array containing state variables and the function you use to change the state. Since it returns an array, we useArray deconstructionVisit each individual project as follows:const [count, setCount] = useState(0)

This is a practical example:

import { useState } from 'react'

const Counter = () => { const [count, setCount] = useState(0)

return ( <div> <p>You clicked {count} times</p> <button onClick={() => setCount(count + 1)}>Click me</button> </div> ) }

ReactDOM.render(<Counter />, document.getElementById(‘app’))

You can add as manyuseState()Make the required calls to create the required number of state variables. Just make sure you are at the top level of the component (not at theifOr in any other block).

Example on Codepen:

Look at the penReact Hooks example #1 counterBy Flavio Copes (@flaviocopes) InCipher pen.

Tech Wiki Online!