how to mantain link active nextjs code example

Example: nextjs active link

import Link from 'next/link';
import { useRouter } from 'next/router';
import React from 'react';

const NavLink = ({ href, children }) => {
    const router = useRouter();

    let className = children.props.className || '';
    if (router.pathname === href) {
        className = `${className} selected`;
    }

    return <Link href={href}>{React.cloneElement(children, { className })}</Link>
}

export default NavLink;