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ReactJS useSelect hook

How to use useCounter hook in ReactJS ?

Last Updated : 01 Dec, 2023

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The useCounter is a custom hook provided by the Rooks package for React. It is a counter hook that helps build a simple counter easily and quickly.

Syntax:

useCounter( initialValue )

Parameters:

initialValue: It is of number type that describes the initial value.

Return Value:

counter: It is of type object which contains a value, increment, decrement, incrementBy, decrementBy, and reset.

Steps to Create the React Application And Installing Module

Step 1: Create a React application using the following command:

npx create-react-application demo

Step 2: After creating your project folder i.e. demo, move to it using the following command:

cd demo

Step 3: Install Rooks from npm.

npm i rooks

Project Structure:

Project Structure

package.json:

"dependencies": {
    "react": "^18.2.0",
    "react-dom": "^18.2.0",
    "react-scripts": "5.0.1",
    "rooks": "^7.14.1",
    "web-vitals": "^2.1.4",
}

Example: The below example will illustrate the use of the useCounter hook in ReactJS:

JavaScript

import React from 'react'; import ReactDOM from 'react-dom/client'; import App from './App';  const root = ReactDOM.createRoot(document.getElementById('root')); root.render(     <React.StrictMode>         <App />     </React.StrictMode> );

JavaScript

import React from "react"; import "./App.css"; import { useCounter } from "rooks";  const App = () => {     const { value, increment, decrement, incrementBy, decrementBy, reset } =         useCounter(0);     return (         <div>             <p> Counter</p>             <p>                 {" "}                 <span>Current value </span>is {value}             </p>             <button onClick={increment}>Increment</button>             <br />             <br />             <button onClick={decrement}>Decrement</button>             <br />             <br />             <button onClick={() => incrementBy(2)}>Increase by 2</button>             <br />             <br />             <button onClick={() => decrementBy(2)}>Decrease by 2</button>             <br />             <br />             <button onClick={reset}>reset</button>         </div>     ); };  export default App;

CSS

/* Write CSS Here */ p {   margin: 20px;   font-size: 30px;   color: rebeccapurple;   font-weight: bold; }  span {   color: red; }  button {   margin: 20px;   width: 300px;   font-size: 20px;   background: rgb(190, 233, 190); }

Step to Run Application: Run the application using the following command from the root directory of the project:

npm start

Output: Now open your browser and go to http://localhost:3000:

Output

ReactJS useSelect hook

T

tejaswaniagrawal23

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Article Tags :

Web Technologies
ReactJS
React-Questions
React-Hooks

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