how to use useparams in react code example

Example 1: useparams react hooks

import React from "react";
import ReactDOM from "react-dom";
import {
  BrowserRouter as Router,
  Switch,
  Route,
  useParams
} from "react-router-dom";

function BlogPost() {
  let { slug } = useParams();
  return <div>Now showing post {slug}</div>;
}

ReactDOM.render(
  <Router>
    <Switch>
      <Route exact path="/">
        <HomePage />
      </Route>
      <Route path="/blog/:slug">
        <BlogPost />
      </Route>
    </Switch>
  </Router>,
  node
);

Example 2: react router dom current path hook

import { useLocation } from 'react-router-dom'

// Location is, for example: http://localhost:3000/users/new

// Care! MyComponent must be inside Router to work
const MyComponent = () => {
	const location = useLocation()
    
    // location.pathname is '/users/new'
    return <span>Path is: {location.pathname}</span>
}

export default MyComponent

Example 3: useparams

import {
  BrowserRouter as Router,
  Switch,
  Route,
  useParams
} from "react-router-dom";

function BlogPost() {
  let { slug } = useParams();
  return <div>Now showing post {slug}</div>;
}

ReactDOM.render(
  <Router>
    <Switch>
      <Route exact path="/">
        <HomePage />
      </Route>
      <Route path="/blog/:slug">
        <BlogPost />
      </Route>
    </Switch>
  </Router>,
  node
);

Example 4: useparams

import { useParams } from "@reach/router"

// route: /user/:userName
const User = () => {
  const params = useParams();

  return <h1>{params.userName}</h1>
)