Conditional Link | theodorusclarence.com

Usage

This component will detect your href props, if it starts with https://, it will direct you to another tab. If it starts with / it will use Next.js / React Router Link Component.

Next.js Code:

// components/UnstyledLink.tsx
import clsx from 'clsx';
import Link, { LinkProps } from 'next/link';
 
export type UnstyledLinkProps = {
  href: string;
  children: React.ReactNode;
  openNewTab?: boolean;
  className?: string;
} & React.ComponentPropsWithoutRef<'a'> &
  LinkProps;
 
export default function UnstyledLink({
  children,
  href,
  openNewTab,
  className,
  ...rest
}: UnstyledLinkProps) {
  const isNewTab =
    openNewTab !== undefined
      ? openNewTab
      : href && !href.startsWith('/') && !href.startsWith('#');
 
  if (!isNewTab) {
    return (
      <Link href={href}>
        <a {...rest} className={className}>
          {children}
        </a>
      </Link>
    );
  }
 
  return (
    <a
      target='_blank'
      rel='noopener noreferrer'
      href={href}
      {...rest}
      className={clsx(className, 'cursor-newtab')}
    >
      {children}
    </a>
  );
}

Create React App Code:

For Create React App with React Router, we need to use Link component from react router

// components/UnstyledLink.jsx
import { Link } from 'react-router-dom';
 
export default function UnstyledLink({
  href,
  className = '',
  openNewTab,
  children,
  ...rest
}) {
  const isInternalLink = href && (href.startsWith('/') || href.startsWith('#'));
 
  // If is internal link, and no override specified
  if (isInternalLink && openNewTab === undefined) {
    return (
      <Link to={href} className={className}>
        {children}
      </Link>
    );
  }
 
  // If no override then _blank
  // if there is override then use the boolean
  return (
    <a
      href={href}
      className={className}
      target={openNewTab === undefined || openNewTab ? '_blank' : undefined}
      rel='noopener noreferrer'
      {...rest}
    >
      {children}
    </a>
  );
}

Custom Style

To add some classes, I usually make another component such as buttons, hover links, etc.

import UnstyledLink from './UnstyledLink';
 
export default function CustomLink({ className = '', ...rest }) {
  return (
    <UnstyledLink
      {...rest}
      className={`inline-flex items-center font-bold hover:text-primary-400 ${className}`}
    />
  );
}