javascript - react 功能没有从功能组件传递到功能组件

Question

我非常习惯于对组件进行分类，现在正试图更习惯于钩子(Hook)，所以我正在深入研究函数式组件。

遇到一个棘手的问题，因为我无法将一个功能从一个功能组件传递给它的功能组件子组件。

在父组件中:

import React, { useState, useEffect } from 'react';
import { Link } from 'gatsby';
import { MenuList, MenuItem } from '@material-ui/core';
import { withCookies, Cookies } from 'react-cookie';
import { ExpandMore } from '@material-ui/icons';
import PropTypes from 'prop-types';
import styles from '../styles/nav.module.scss';
import NavDrawer from './navDrawer';

const activeStyle = {
   color: '#445565',
   backgroundColor: '#de1b',
   borderColor: '#ced4da',
};

const NavMobile = (props) => {
const [isOpenProductsMenu, setIsOpenProductsMenu] = useState(false);
const [isOpenServicesMenu, setIsOpenServicesMenu] = useState(false);
const [isAdmin, setIsAdmin] = useState(false);

const { cookies, categories } = props;
const main = process.env.ROOT_CATEGORIES.split(',');
useEffect(() => {
    if (cookies.get('roles')) {
        const roles = cookies.get('roles');
        setIsAdmin(!!roles.includes('ROLE_ADMIN') || roles.includes('ROLE_SUPERADMIN'));
    }
});
const toggleProductsMenu = (isOpen) => {
    if (event.type === 'keydown' && (event.key === 'Tab' || event.key === 'Shift')) {
        return;
    }
    setIsOpenProductsMenu(isOpen);
};
const toggleServicesMenu = (isOpen) => {
    if (event.type === 'keydown' && (event.key === 'Tab' || event.key === 'Shift')) {
        return;
    }
    setIsOpenServicesMenu(isOpen);
};
return (
    <MenuList className={styles.navMobile} style={{ padding: '0 10px 0 0' }}>
        <MenuItem disableGutters>
            <Link to="/" activeStyle={activeStyle}>Home</Link>
        </MenuItem>
        <MenuItem disableGutters>
            <Link to="/search" activeStyle={activeStyle}>Search</Link>
        </MenuItem>
        <MenuItem
            onMouseEnter={() => toggleProductsMenu(true)}
            onMouseLeave={() => toggleProductsMenu(false)}
            className={styles.overrideItem}
            disableGutters
        >
            <NavDrawer
                type={main[0]}
                open={isOpenProductsMenu}
                categories={categories}
                toggleMenu={toggleProductsMenu}
            />
            <Link to="/" onClick={(event) => event.preventDefault}>
                <div className={styles.itemWrap}>
                    {main[0]}
                    <ExpandMore />
                </div>
            </Link>
        </MenuItem>
        <MenuItem
            onMouseEnter={() => toggleServicesMenu(true)}
            onMouseLeave={() => toggleServicesMenu(false)}
            className={styles.overrideItem}
            disableGutters
        >
            <NavDrawer
                type={main[1]}
                open={isOpenServicesMenu}
                categories={categories}
                toggleMenu={toggleServicesMenu}
            />
            <Link to="/" onClick={(event) => event.preventDefault}>
                <div className={styles.itemWrap}>
                    {main[1]}
                    <ExpandMore />
                </div>
            </Link>
        </MenuItem>
        {isAdmin ?
            (
                <MenuItem disableGutters>
                    <Link to="/admin" activeStyle={activeStyle}>Admin</Link>
                </MenuItem>
            ) : null}
    </MenuList>
);
};

NavMobile.propTypes = {
    cookies: PropTypes.instanceOf(Cookies).isRequired,
   categories: PropTypes.array.isRequired,
};

 export default withCookies(NavMobile);

但是，如果我尝试访问子组件中的 Prop ，如下所示， toggleMenu函数不会在输出中；

而且，当然，会抛出 type error .

export default function NavDrawer(props) {
 const {
    type,
    open,
    categories,
    toggleMenu,
 } = props;
 console.log('props drawer', props);

             <Drawer
            id={`parentDrawer-${type}`}
            onMouseEnter={() => setIsOpenSubDrawer(true)}
            onMouseLeave={() => setIsOpenSubDrawer(false)}
            className={classes.drawer}
            variant="temporary"
            open={open}
            close={toggleMenu(false)}

我错过了什么？

Answer 1

toggleProductsMenu 和 toggleServicesMenu 中的事件对象未定义。