Javascript reactjs函数中的第二个参数未定义
我一直在做一个小项目来熟悉ReactJS,到目前为止我玩得很开心。到目前为止,在这里的帮助下,我已经解决了一些问题 目前,我正在根据授权用户的角色更改标题中的链接。在我尝试注册一个用户之前,这个部分似乎工作得很好。我遇到了一个问题,Javascript reactjs函数中的第二个参数未定义,javascript,reactjs,firebase,material-ui,Javascript,Reactjs,Firebase,Material Ui,我一直在做一个小项目来熟悉ReactJS,到目前为止我玩得很开心。到目前为止,在这里的帮助下,我已经解决了一些问题 目前,我正在根据授权用户的角色更改标题中的链接。在我尝试注册一个用户之前,这个部分似乎工作得很好。我遇到了一个问题,props.firebase代码行未定义。我需要做些什么才能让它不被定义?当我删除{authUser}参数时,一切似乎都很顺利,但将其添加到函数时会出现问题。注册文件的代码如下: import {Link as RouterLink, withRouter} from
props.firebase
代码行未定义。我需要做些什么才能让它不被定义?当我删除{authUser}参数时,一切似乎都很顺利,但将其添加到函数时会出现问题。注册文件的代码如下:
import {Link as RouterLink, withRouter} from 'react-router-dom'
import {compose} from 'recompose';
import {withFirebase} from '../../components/Firebase'
import * as ROUTES from '../../constants/routes'
import Avatar from '@material-ui/core/Avatar';
import Button from '@material-ui/core/Button';
import CssBaseline from '@material-ui/core/CssBaseline';
import TextField from '@material-ui/core/TextField';
import Link from '@material-ui/core/Link';
import Grid from '@material-ui/core/Grid';
import Box from '@material-ui/core/Box';
import LockOutlinedIcon from '@material-ui/icons/LockOutlined';
import Typography from '@material-ui/core/Typography';
import {makeStyles} from '@material-ui/core/styles';
import Container from '@material-ui/core/Container';
import SignInPage, {SignInLink} from "../SignInPage";
import styles from '../../assets/jss/website-template/views/signUpPage';
import Header from '../../components/Header/Header';
import HeaderLinks from '../../components/Header/HeaderLinks';
import image from '../../assets/img/kissing.JPG';
import Paper from '@material-ui/core/Paper';
import AuthUserContext from '../../components/Session/context';
function Copyright() {
return (
<Typography variant="body2" color="textSecondary" align="center">
{'Copyright © '}
<Link color="inherit" href="https://material-ui.com/">
Your Website
</Link>{' '}
{new Date().getFullYear()}
{'.'}
</Typography>
);
}
const useStyles = makeStyles(styles);
const SignUpPage = () => (
<div>
<AuthUserContext.Consumer>
{authUser => authUser === null ?
<SignUpForm authUser={null} /> :
<SignUpForm authUser={authUser} /> }
</AuthUserContext.Consumer>
</div>
);
const SignUpFormBase = ({authUser}, props) => {
const classes = useStyles();
const [username, setUsername] = useState('');
const [email, setEmail] = useState('');
const [passwordOne, setPasswordOne] = useState('');
const [passwordTwo, setPasswordTwo] = useState('');
const [inviteCode, setInviteCode] = useState('');
const [error, setError] = useState(null);
const {...rest} = props;
const isInvalid =
passwordOne !== passwordTwo ||
passwordOne === '' ||
email === '' ||
username === '';
const doSubmit = event => {
props.firebase
.checkInviteCode(inviteCode)
.then(role => {
props.firebase
.doCreateUserWithEmailAndPassword(email, passwordOne)
.then(authUser => {
return props.firebase
.user(authUser.user.uid)
.set({
username,
email,
role,
});
})
.then(authUser => {
setUsername(username);
setPasswordOne(passwordOne);
setPasswordTwo(passwordTwo);
setEmail(email);
setInviteCode(inviteCode);
props.history.push(ROUTES.HOME);
})
.catch(error => {
setError(error);
});
})
.catch(error => {
console.log(error);
});
event.preventDefault();
}
return (
<div>
<Header
absolute
color="transparent"
brand="Material Kit React"
rightLinks={<HeaderLinks authUser={authUser}/>}
{...rest}
/>
<div
className={classes.pageHeader}
style={{
backgroundImage: "url(" + image + ")",
backgroundSize: "cover",
backgroundPosition: "top center"
}}
>
<Grid component="main" className={classes.container}>
<CssBaseline/>
<Grid item component={Paper} xs={12} sm={12} md={4}>
<div className={classes.paper}>
<Avatar className={classes.avatar}>
<LockOutlinedIcon/>
</Avatar>
<Typography component="h1" variant="h5">
Sign up
</Typography>
<form className={classes.form} noValidate onSubmit={doSubmit}>
<TextField
margin="normal"
autoComplete="fname"
name="username"
variant="outlined"
required
fullWidth
id="username"
label="Username"
autoFocus
value={username}
onChange={event => setUsername(event.target.value)}
/>
<TextField
margin="normal"
variant="outlined"
required
fullWidth
id="email"
label="Email Address"
name="email"
autoComplete="email"
value={email}
onChange={event => setEmail(event.target.value)}
/>
<TextField
margin="normal"
variant="outlined"
required
fullWidth
name="password"
label="Password"
type="password"
id="password"
autoComplete="current-password"
value={passwordOne}
onChange={event => setPasswordOne(event.target.value)}
/>
<TextField
margin="normal"
variant="outlined"
required
fullWidth
name="password"
label="Confirm Password"
type="password"
id="password"
autoComplete="confirm-password"
value={passwordTwo}
onChange={event => setPasswordTwo(event.target.value)}
/>
<TextField
margin="normal"
variant="outlined"
required
fullWidth
name="inviteCode"
label="InviteCode"
id="inviteCode"
autoComplete="inviteCode"
value={inviteCode}
onChange={event => setInviteCode(event.target.value)}
/>
<Button
type="submit"
fullWidth
variant="contained"
className={classes.submit}
disabled={isInvalid}
>
Sign Up
</Button>
{error && <p>{error.message}</p>}
<Grid container>
<Grid item>
<SignInLink href="#" variant="body2"/>
</Grid>
</Grid>
<Box mt={2}>
<Copyright/>
</Box>
</form>
</div>
</Grid>
</Grid>
</div>
</div>
);
}
const SignUpLink = () => (
<p>
<RouterLink to={ROUTES.SIGN_UP}>Don't have an account? Sign Up</RouterLink>
</p>
);
const SignUpForm = compose(
withFirebase,
withRouter,
)(SignUpFormBase);
export default SignUpPage;
export {SignUpForm, SignUpLink};
从'react router dom'导入{Link as RouterLink,with router}
从“重新组合”导入{compose};
从“../../components/Firebase”导入{withFirebase}
从“../../constants/ROUTES”导入*作为路由
从“@material ui/core/Avatar”导入化身;
从“@material ui/core/Button”导入按钮;
从“@material ui/core/CssBaseline”导入CssBaseline;
从“@material ui/core/TextField”导入TextField;
从“@material ui/core/Link”导入链接;
从“@material ui/core/Grid”导入网格;
从“@material ui/core/Box”导入框;
从“@material ui/icons/LockOutlinedIcon”导入LockOutlinedIcon;
从“@material ui/core/Typography”导入排版;
从'@material ui/core/styles'导入{makeStyles};
从“@material ui/core/Container”导入容器;
导入签名页,{SignInLink}来自“./SignInPage”;
从“../../assets/jss/website template/views/signUpPage”导入样式;
从“../../components/Header/Header”导入标题;
从“../../components/Header/HeaderLink”导入HeaderLink;
从“../../assets/img/kissing.JPG”导入图像;
从“@material ui/core/Paper”导入纸张;
从“../../components/Session/context”导入AuthUserContext;
函数版权(){
返回(
{'Copyright}
你的网站
{' '}
{新日期().getFullYear()}
{'.'}
);
}
const useStyles=生成样式(样式);
const SignUpPage=()=>(
{authUser=>authUser===null?
:
}
);
const SignUpFormBase=({authUser},props)=>{
const classes=useStyles();
const[username,setUsername]=useState(“”);
const[email,setEmail]=useState(“”);
const[passwordOne,setPasswordOne]=useState(“”);
const[passwordTwo,setPasswordTwo]=useState(“”);
const[inviteCode,setInviteCode]=useState(“”);
const[error,setError]=useState(null);
const{…rest}=props;
康斯特·伊森瓦利德=
密码一!==密码二||
passwordOne==''||
电子邮件==''||
用户名=='';
const doSubmit=事件=>{
火基道具
.checkInviteCode(inviteCode)
。然后(角色=>{
火基道具
.doCreateUserWithEmailAndPassword(电子邮件、passwordOne)
。然后(authUser=>{
返回道具。火力基地
.user(authUser.user.uid)
.设置({
用户名,
电子邮件,
角色
});
})
。然后(authUser=>{
setUsername(用户名);
设置密码一(密码一);
设置密码2(密码2);
设置电子邮件(电子邮件);
setInviteCode(inviteCode);
道具。历史。推送(路线。回家);
})
.catch(错误=>{
设置错误(错误);
});
})
.catch(错误=>{
console.log(错误);
});
event.preventDefault();
}
返回(
注册
setUsername(event.target.value)}
/>
setEmail(event.target.value)}
/>
setPasswordOne(event.target.value)}
/>
setPasswordTwo(event.target.value)}
/>
setInviteCode(event.target.value)}
/>
注册
{error&{error.message}}
);
}
常量符号上行链路=()=>(
没有帐户?注册吧
);
const SignUpForm=compose(
使用Firebase,
用路由器,
)(SignUpFormBase);
导出默认签名;
导出{SignUpForm,SignUpLink};
正如我提到的,问题在于
props.firebase
未定义,因此它找不到checkInviteCodes()
函数。props始终是第一个参数,基于函数的组件的正确签名是组件(props)
更改此项:
c