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ReactJS useSelect hook

ReactJS useParams Hook

Last Updated : 14 Apr, 2025

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In ReactJS, when building single-page applications (SPAs) with dynamic routing, you often need to access dynamic data from the URL.

For example, in a blog application, the URL will change depending on the post being viewed, like /post/:id. The useParams hook, provided by the react-router-dom package, allows you to access these dynamic parts of the URL, known as route parameters, in your components.

What is useParams?

useParams is a hook in React Router that allows you to access route parameters from the current URL. A route parameter is a part of the URL that is variable (e.g., /product/:id), and it can be used to pass data to components dynamically.

const { param1, param2, ... } = useParams();

param1, param2, etc., are the names of the route parameters defined in the path.
useParams returns an object where the keys are the parameter names, and the values are the corresponding values from the URL.

Prerequisites:

NPM & Node.js
React JS
react-router-dom

Steps to Create React Application and Installing Modules

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

npx create-react-app useparams_react

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

cd useparams_react

Step 3: After creating the ReactJS application, Install the react-router-dom and react-dom packages using the following command.

npm install react-router-dom@6

Project structure:

The updated dependencies in package.json file.

"dependencies": {   "@testing-library/jest-dom": "^5.17.0",   "@testing-library/react": "^13.4.0",   "@testing-library/user-event": "^13.5.0",   "react": "^18.2.0",   "react-dom": "^18.2.0",   "react-router-dom": "^6.9.0",   "react-scripts": "5.0.1",   "web-vitals": "^2.1.4" }

React Code:

JavaScript

import React from "react"; import { BrowserRouter as Router, Route, Routes, useParams } from "react-router-dom";  function BlogPost() {   let { id } = useParams();   return <div style={{ fontSize: "50px" }}>Now showing post {id}</div>; }  function Home() {   return <h3>Home page</h3>; }  function App() {   return (     <Router>       <Routes>         <Route path="/" element={<Home />} />         <Route path="/page/:id" element={<BlogPost />} />       </Routes>     </Router>   ); }  export default App;

useParams is called inside the BlogPost component to fetch the dynamic parameter id from the URL.
The URL /post/:id means that the value for id is dynamically passed and can be accessed via useParams.

Output

ReactJS useSelect hook

raman111

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Article Tags :

ReactJS
Web Technologies
React-Hooks

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