JIYIK CN >

Current Location:Home > Learning > WEB FRONT-END > React >

React uses Router to get the current route

Author:JIYIK Last Updated:2025/03/15 Views:

Use useLocation()the hook to get the current route through React Router, for example const location = useLocation(). The hook returns the current location object. For example, we can access the pathname as location.pathname.

import React from 'react';
import {Route, Link, Routes, useLocation} from 'react-router-dom';

export default function App() {
  const location = useLocation();

  console.log('hash', location.hash);
  console.log('pathname', location.pathname);
  console.log('search', location.search);

  return (
    <div>
      <div>
        <h2>Current Pathname 👉️ {location.pathname}</h2>
        <h2>Current Search params 👉️ {location.search}</h2>
        <h2>Current Hash 👉️ {location.hash}</h2>
        <nav>
          <ul>
            <li>
              <Link to="/">Home</Link>
            </li>
            <li>
              <Link to="/about">About</Link>
            </li>
            <li>
              <Link to="/users?page=10">Users</Link>
            </li>
            <li>
              <Link to="/users?page=10#myHash">Users with hash</Link>
            </li>
          </ul>
        </nav>

        <Routes>
          <Route path="/about" element={<About />} />
          <Route path="/" element={<Home />} />
        </Routes>
      </div>
    </div>
  );
}

function Home() {
  return <h2>Home</h2>;
}

function About() {
  return <h2>About</h2>;
}

react router get current route

We use the useLocation hook to get the current location object.

Some of the properties that can be accessed on the location object are:

  • pathname - the current pathname, e.g. /Users
  • search - the current query string, e.g. ?page=10
  • hash - the current hash value, #examplee.g.

When using react router hooks, make sure to wrap our application in a router component in the index.js file.

index.js

import {createRoot} from 'react-dom/client';
import App from './App';
import {BrowserRouter as Router} from 'react-router-dom';

const rootElement = document.getElementById('root');
const root = createRoot(rootElement);

// wrap App in Router
root.render(
  <Router>
    <App />
  </Router>
);

The best place to wrap your React application with the Router component is in the index.js file, since this is the entry point for your React application.

Once your entire app is wrapped in a Router component, you can use any hook from the react router package anywhere in your component.

If you have dynamic routes and try to access their IDs, use useParamsthe hook.

import React from 'react';
import {Route, Link, Routes, useParams} from 'react-router-dom';

function Users() {
  // get ID from url
  const params = useParams();

  console.log(params); // {userId: '12345'}

  return <h2>userId is 👉️ {params.userId}</h2>;
}

export default function App() {
  return (
    <div>
      <div>
        <nav>
          <ul>
            <li>
              <Link to="/">Home</Link>
            </li>
            <li>
              <Link to="/about">About</Link>
            </li>
            <li>
              {/* link to dynamic path */}
              <Link to="/users/12345">Users</Link>
            </li>
          </ul>
        </nav>

        <Routes>
          <Route path="/about" element={<About />} />
          {/* handle dynamic path */}
          <Route path="/users/:userId" element={<Users />} />
          <Route path="/" element={<Home />} />
        </Routes>
      </div>
    </div>
  );
}

function Home() {
  return <h2>Home</h2>;
}

function About() {
  return <h2>About</h2>;
}

get dynamic route id

The useParams hook returns <Route path>an object of key-value pairs of dynamic parameters matching the current URL.

Notice that we set a dynamic path property - on the Route component that renders the User component <Route path="/users/:userId" element={<Users />} />.

When visiting /users/some-id , we can use the useParams hook to get the ID.

function Users() {
  // get ID from url
  const params = useParams();

  console.log(params); // 👉️ {userId: '12345'}

  return <h2>userId is 👉️ {params.userId}</h2>;
}

This route will match anything after /users/, such as /users/123 or /users/asdf .

For reprinting, please send an email to 1244347461@qq.com for approval. After obtaining the author's consent, kindly include the source as a link.

Article URL:

Related Articles

Fix Uncaught ReferenceError: useState is not defined in React

Publish Date:2025/03/15 Views:142 Category:React

When we use the useState hook in our code but forget to import it, it generates the error Uncaught ReferenceError: useState is not defined. To fix this error, you need to import the hook before using it import {useState} from react . // ?️

React error Uncaught ReferenceError: process is not defined solution

Publish Date:2025/03/15 Views:116 Category:React

要解决 React 中的“Uncaught ReferenceError: process is not defined” 错误,需要在项目的根目录中打开终端并通过运行 `npm install react-scripts@latest` 更新 `react-scripts` 包的版本,并在必要时重新安装

React Error Property 'X' does not exist on type 'Readonly<{}>'

Publish Date:2025/03/15 Views:139 Category:React

当我们尝试访问未键入的类组件的 props 或状态时,会发生 React.js 错误“Property does not exist on type 'Readonly '”。 要解决该错误,需要使用 React.Component 类上的泛型来输入该类的道具或状

Fix the value prop on input should not be null error in React

Publish Date:2025/03/15 Views:141 Category:React

当我们将输入的初始值设置为 null 或覆盖将其设置为 null 的初始值时,会导致警告“value prop on input should not be null”,例如 来自空的 API 响应。 使用后备值来解决这个问题。

Scan to Read All Tech Tutorials

Social Media
  • https://www.github.com/onmpw
  • qq:1244347461

Recommended

Tags

Scan the Code
Easier Access Tutorial