我正在将js迁移到ts,修改后的代码有错误:
第26:8行:解析错误:预计为“>”
import React from "react";
import { Route, Redirect, RouteProps } from "react-router-dom";
import {render} from "react-dom"
import {AppProps} from "../App"
function querystring(name: string, url = window.location.href) {
name = name.replace(/[[]]/g, "\\$&");
const regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)", "i");
const results = regex.exec(url);
if (!results) {
return null;
}
if (!results[2]) {
return "";
}
return decodeURIComponent(results[2].replace(/\+/g, " "));
}
export default function UnauthenticatedRoute({ component: C, appProps, ...rest }:
RouteProps & {appProps: AppProps}) {
const redirect = querystring("redirect");
return (
<Route
{...rest} // the issue is here
render={ props => !appProps.isAuthenticated ?
<C {...props} {...appProps} />
:
<Redirect to={redirect === "" || redirect === null ? "/" : redirect}/>
}
/>
);
}
如果有人看到问题,那就好了:)。谢谢!
1 /文件必须具有tsx扩展名
2 / tsx语法中的语法也有误。我改成了这个,现在可以了:
export default function UnauthenticatedRoute({ component: C, appProps, ...rest }:
RouteProps & {appProps: AppProps}) {
const redirect = querystring("redirect");
return (
<Route {...rest}
render={ props => !appProps.isAuthenticated ?
<C {...props} {...appProps} />
:
<Redirect to={redirect === "" || redirect === null ? "/" : redirect}/>
}
/>
);
}
现在,绑定元素'C'还有另一个问题,但这是另外一回事了。
谢谢大家!
答案 0 :(得分:8)
将文件扩展名从.ts
更改为.tsx
。
答案 1 :(得分:0)
请注意:返回 react-dom 时,请始终使用 TSX,否则使用 TS