• Modern web applications require dynamic, responsive, and efficient frontends. Here are some advanced frontend techniques to improve performance and user experience:

1. Single-Page Applications (SPAs) with React or Vue.js

• Traditional websites reload pages completely, whereas SPAs load content dynamically without refreshing the entire page.
• React.js and Vue.js are popular choices for building SPAs.

Example: Using React.js to create a simple SPA component:

js

import React, { useState } from ‘react’;

function Counter() {

    const [count, setCount] = useState(0);

    return (

        <div>

            <h1>Counter: {count}</h1>

            <button onClick={() => setCount(count + 1)}>Increase</button>

        </div>

    );

}

export default Counter;

2. Server-Side Rendering (SSR) for Performance Optimization

• SSR (Server-Side Rendering) allows pages to load faster by pre-rendering content on the server.
• Next.js (for React) and Nuxt.js (for Vue) enable SSR in frontend applications.

Example: Creating a server-rendered React component with Next.js:

js

export async function getServerSideProps() {

    const data = await fetch(“https://api.example.com/data”);

    const jsonData = await data.json();

    return { props: { jsonData } };

}

export default function Page({ jsonData }) {

    return <div>Data: {jsonData}</div>;

}

Using SPAs and SSR enhances frontend speed, SEO, and overall user experience.