Node7.4.0 / ES6 / Typescript 2.1.5 / WebStorm 2016.3
在线: 导出默认的heroRoutes.router;
我得到: TS2503无法找到命名空间'heroRoutes' 创建它之后和init() 它可能有什么问题?
感谢您的反馈
HeroRouter.ts
import {Router, Request, Response, NextFunction} from 'express';
const Heroes = require('../data');
export class HeroRouter {
router: Router;
/**
* Initialize the HeroRouter
*/
constructor() {
this.router = Router();
this.init();
}
/**
* GET all Heroes.
*/
public getAll(req: Request, res: Response, next: NextFunction) {
res.send(Heroes);
}
/**
* GET one hero by id
*/
public getOne(req: Request, res: Response, next: NextFunction) {
let query = parseInt(req.params.id);
let hero = Heroes.find(hero => hero.id === query);
if (hero) {
res.status(200)
.send({
message: 'Success',
status: res.status,
hero
});
}
else {
res.status(404)
.send({
message: 'No hero found with the given id.',
status: res.status
});
}
}
/**
* Take each handler, and attach to one of the Express.Router's
* endpoints.
*/
init() {
this.router.get('/', this.getAll);
this.router.get('/:id', this.getOne);
}
}
// Create the HeroRouter, and export its configured Express.Router
let heroRoutes = new HeroRouter();
heroRoutes.init();
export default heroRoutes.router;
答案 0 :(得分:5)
const heroRouter = new HeroRouter();
const router = heroRouter.router;
export default router;
原因是您无法导出限定名称。
模块的导出绑定到称为模块命名空间对象的特殊对象。一个原因是,如果合格的导出是合法的,那么语义将会令人惊讶,因为更新变量router
的实例成员heroRouter
的值不会更新导出的绑定的值(此处命名为{{ 1}})。