router.events.filter is not a function?

来源：3-9 改造股票管理应用

QFLIU

2018-05-18

导入了 rxjs 后台编译的时候提示我 Can't resolve ‘rxjs/add/operator/filter' 在网上也找不到答案

写回答

2回答

泽里

2018-12-12

import { filter } from 'rxjs/operators';

并且代码需要修改为：

constructor(public router: Router) {
router.events.pipe(filter(event => event instanceof NavigationEnd)).subscribe((event: NavigationEnd) => {
if (event.url === '/dashboard') {
this.pageTitle = '这里是首页';
this.pageDesc = '这里是首页';
} else {
if (event.url.startsWith('/stock')) {
this.pageTitle = '股票信息管理';
this.pageDesc = '进行股票信息基本增删改查';
}
}
});
}