javascript - 警告 : Function components cannot be given refs

Question

我正在使用 Next.js 最新版本来制作我的博客网站，不知道为什么显示错误，当我尝试制作我的表单时，然后显示如下错误:

Warning: Function components cannot be given refs. 
Attempts to access this ref will fail. Did you mean to use React.forwardRef()?

我试过下面的代码:

import React, { useState } from "react";
import { APP_NAME } from "../config";
import Link from "next/link";
import {
  Collapse,
  Navbar,
  NavbarToggler,
  NavbarBrand,
  Nav,
  NavItem,
  NavLink,
} from "reactstrap";

const Header = () => {
  const [isOpen, setIsOpen] = useState(false);
  const toggle = () => setIsOpen(!isOpen);

  return (
    <div>
      <Navbar color="light" light expand="md">
        <Link href="/">
          <NavbarBrand className="font-weight-bold">{APP_NAME}</NavbarBrand>
        </Link>
        <NavbarToggler onClick={toggle} />
        <Collapse isOpen={isOpen} navbar>
          <Nav className="m-auto" navbar>
            <NavItem>
              <Link href="/signup">
                <NavLink style={{ cursor: "pointer" }}>Signup</NavLink>
              </Link>
            </NavItem>
            <NavItem>
              <Link href="/signin">
                <NavLink style={{ cursor: "pointer" }}>Signin</NavLink>
              </Link>
            </NavItem>
          </Nav>
        </Collapse>
      </Navbar>
    </div>
  );
};

export default Header;

请给我您的宝贵建议。

Answer 1

最简单的解决方案可能是用原生 html 元素包装您的 NavLink。在你的情况下:

<Link href="/signup" passHref>
  <a>
    <NavLink style={{ cursor: "pointer" }}>Signup</NavLink>
  </a>
</Link>