react router保存上一页路由

react router保存上一页路由

import { createBrowserHistory, Location } from 'history';
const history = createBrowserHistory({
    basename:
        process.env.NODE_ENV === 'development' ? undefined : '//framework',
});

// 导出到全局
let previousLocation: Location;
let currentLocation: Location;
history.listen((location) => {
    previousLocation = currentLocation;
    currentLocation = location;
});
export function getPreviousLocation() {
    return previousLocation;
}