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Tutorial

Mastering React Rendering Performance with Memoization and Context 

   const ThemeContext = React.createContext();
   const UserContext = React.createContext();
   const value = useMemo(() => ({ user, setUser }), [user]);

May 03, 2025
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Cheatsheet
javascript

React Performance Optimization Cheatsheet: Hooks, Memoization, and Lazy Loading

You can also split your code into smaller bundles that are loaded on demand. This is particularly useful for large applications with many routes or components.

import React, { Suspense } from 'react';
import { BrowserRouter as Router, Route, Switch } from 'react-router-dom';

const Home = React.lazy(() => import('./Home'));
const About = React.lazy(() => import('./About'));

function App() {
  return (
    <Router>
      <Suspense fallback={<div>Loading...</div>}>
        <Switch>
          <Route exact path="/" component={Home} />
          <Route path="/about" component={About} />
        </Switch>
      </Suspense>
    </Router>
  );
}

export default App;

Aug 20, 2024
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