Link.tsx

import React, { AnchorHTMLAttributes } from 'react'
import { NavLink, NavLinkProps } from 'react-router-dom'

const Link: React.SFC<NavLinkProps | AnchorHTMLAttributes> = props => {
  if (props.to) {
    return <NavLink {...props} />
  }

  return <a {...props} />
}

export default Link