我该怎么修

Question

srccomponentsMessagesMessages.tsx
Line 180:114:  Parsing error: ',' expected
ERROR in src/components/Messages/Messages.tsx:14:23
TS7016: Could not find a declaration file for module 'dompurify'. 'C:/Users/tommi/Downloads/React-Discord-Clone-master/React-Discord-Clone-master/node_modules/dompurify/dist/purify.cjs.js' implicitly has an 'any' type.
Try `npm install @types/dompurify` if it exists or add a new declaration (.d.ts) file containing `declare module 'dompurify';`
12 | } from '@material-ui/core';
13 | import moment from 'moment';
> 14 | import DOMPurify from 'dompurify';
|                       ^^^^^^^^^^^
15 | //import Code from 'react-code-prettify';
16 | import UserInfo from '../UserInfo/UserInfo';
17 | import { StoreState } from '../../reducers';

src/components/Messages/Messages中的错误。tsx:180:115TS1005:应为"，"。178|次要={179 |

180 |<div dangerouslySetInnerHTML=｛｛__html:DOMPurify.sance(formatCode((message.msg((｝｝>|^181 |182 |｝183|className="；消息文本"；

但是，代码是这个

import React, { useEffect, useState } from 'react';
import { useSelector } from 'react-redux';
import {
List,
ListItem,
ListItemAvatar,
Avatar,
ListItemText,
Fade,
Popover,
CircularProgress
} from '@material-ui/core';
import moment from 'moment';
import DOMPurify from 'dompurify';
//import Code from 'react-code-prettify';
import UserInfo from '../UserInfo/UserInfo';
import { StoreState } from '../../reducers';
interface MessageList {
from: string;
to?: string;
msg: string;
date: Date;
}
declare var PR: any;
export default function Messages() {
// Get States from Redux Store
const chatStore = useSelector((state: StoreState) => state.chat);
const { activeServer, activeChannel, activeView, activePMUser } = chatStore;
// Local states
const [userInfoVisible, setUserInfoVisible] = useState(false);
const [messageIndex, setMessageIndex] = useState(12);
const [loadMessages, setLoadMessages] = useState(false);
const [userName, setUserName] = useState('');
const [anchorEl, setAnchorEl] = useState(null);
// ref to message container (for keeping scroll to bottom of chat)
let messageContainerBottomRef = document.getElementById('messagesContainerBottom');
let messageContainerRef = document.getElementById('messagesContainer');
// Get message list from channel or from specific user
let messages: MessageList[] = [];
let messagesLength = 0;
if (activeView === 'servers') {
messages = chatStore.servers[activeServer]['channels'][activeChannel];
messagesLength = messages.length;
} else {
messages = chatStore.privateMessages[activePMUser];
// If no messages need to make empty array
if (messages === undefined) {
messages = [];
}
messagesLength = messages.length;
}
// Scroll to bottom of container if were not loading new messages
useEffect(() => {
if (messageContainerBottomRef && messageContainerRef) {
if (loadMessages) {
messageContainerRef.scroll(0, 60);
} else {
messageContainerBottomRef.scrollIntoView({ block: 'end', behavior: 'smooth' });
}
}
}, [loadMessages, messages, messageContainerRef, messageContainerBottomRef]);
// Checks is message is a code block
const isTextCodeBlock = (message: string) => {
if (message.startsWith('```') && message.endsWith('```')) return true;
else return false;
};
// Handles to load more messages when scroll at top
const handleScrollTop = (e: any) => {
const element = e.target;
if (element.scrollTop > 60) {
setLoadMessages(false);
}
if (element.scrollTop === 0) {
if (messagesLength > messageIndex) {
setTimeout(() => {
setLoadMessages(true);
if (messageIndex + 12 > messagesLength) {
setMessageIndex(messagesLength);
} else {
setMessageIndex(messageIndex + 12);
}
}, 400);
}
}
};
// Formats the code block
const formatCode = (message: string) => {
return message.split('```')[1];
};
// Handles clicks for setting anchor to User Info (To private message)
const handleUserClick = (e: any, userName: string) => {
setUserName(userName);
setUserInfoVisible(true);
setAnchorEl(e.currentTarget);
};
// Closes popup of User Info
const handlePopoverClose = () => {
setUserInfoVisible(false);
setAnchorEl(null);
};
// Load pretty print on every render change
useEffect(() => {
PR.prettyPrint();
});
return (
<React.Fragment>
{messages.length === 0 && (
<div style={{ height: '100%', width: '100%', display: 'flex', justifyContent: 'center', alignItems: 'center' }}>
<div
style={{
display: 'flex',
justifyContent: 'center',
alignItems: 'center',
flexWrap: 'wrap',
textAlign: 'center',
padding: '1em',
fontFamily: 'roboto'
}}
>
<CircularProgress />{' '}
<div style={{ marginTop: '1em', flexBasis: '100%', color: 'white' }}>
{' '}
The server just woke up! Hold on for 5 seconds, while he munches a quick byte!{' '}
</div>
</div>
</div>
)}
<div
id="messagesContainer"
className="messages-container"
onScroll={e => handleScrollTop(e)}
ref={element => (messageContainerRef = element)}
>
{messagesLength >= messageIndex ? (
<div className="progress-container">
<CircularProgress color="primary" />
</div>
) : null}
<List>
{messages !== null
? messages.slice(messagesLength - messageIndex, messagesLength).map((message, i) => {
// Filter for null messages (dummy message on backend should fix...)
return (
<Fade in={true} timeout={500}>
<ListItem className="message" key={i}>
<ListItemAvatar className="message-user-icon">
<Avatar>
<img
onClick={e => handleUserClick(e, message.from)}
src={process.env.PUBLIC_URL + '/user.png'}
alt="user icon"
height="48"
/>
</Avatar>
</ListItemAvatar>
{isTextCodeBlock(message.msg) ? (
<ListItemText
primary={
<div className="message-user" onClick={e => handleUserClick(e, message.from)}>
{message.from.toLowerCase()}
<div className="message-date">{` - ${moment(message.date).format('LLL')}`}</div>
</div>
}
secondary={
<pre className="prettyprint">
<div dangerouslySetInnerHTML={{ __html: DOMPurify.sanitize(formatCode((message.msg))}}></div>
</pre>
}
className="message-text"
/>
) : (
<ListItemText
primary={
<div className="message-user" onClick={e => handleUserClick(e, message.from)}>
{message.from.toLowerCase()}
<div className="message-date">{` - ${moment(message.date).format('LLL')}`}</div>
</div>
}
secondary={message.msg}
className="message-text"
/>
)}
</ListItem>
</Fade>
);
})
: null}
</List>
<div ref={element => (messageContainerBottomRef = element)} id="messagesContainerBottom"></div>
<Popover
id="user-info"
open={userInfoVisible}
anchorEl={anchorEl}
onClose={handlePopoverClose}
anchorOrigin={{
vertical: 'bottom',
horizontal: 'right'
}}
>
<UserInfo userName={userName} setUserInfoVisible={setUserInfoVisible} />
</Popover>
</div>
</React.Fragment>
);
}

Answer 1

Try "npm install @types/dompurify" if it exists or add a new declaration (.d.ts) file containing "declare module 'dompurify';"

这在错误消息中。您尝试使用的程序包缺少类型。

还要查看社区关于提出好问题的指导方针。张贴你的问题的细节，而不仅仅是"；我该如何解决这个问题"；。https://stackoverflow.com/help/how-to-ask

Answer 2

您在第180行遇到问题：将相应的行更改为：

<div dangerouslySetInnerHTML={{ __html: DOMPurify.sanitize(formatCode(message.msg))}}></div>

你可能还没有安装dompurify软件包。所以请小心安装