import React , { useMemo } from "react" ; import { Typography , Link } from "@material-ui/core" ; export const Copyright = ( ) => { const copyright = useMemo ( ( ) => { return ( < Typography color = "textSecondary" align = "center" > Copyright © < Link color = "inherit" href = "https://www.flect.co.jp/" > FLECT , Co . , Ltd . < /Link> { new Date ( ) . getFullYear ( ) } < /Typography>); } , [ ] ) ; return < > { copyright } < />; } ;