reduce函数导致错误

Question

chrome 控制台中显示的错误：

1. http://localhost:3000/vendor/@ngrx/store/index.js
Failed to load resource: the server responded with a status of 404 (Not Found)

2. localhost/:19 Error: Error: XHR error (404 Not Found)
loading http://localhost:3000/vendor/@ngrx/store/index.js(…)
(anonymous function) @ localhost/:19

reducer.ts: *我找不到 something1 return 值的类型和状态类型的合适类型。

import { Action} from '@ngrx/store';
export const something1 = (state: any = {}, action:Action) => {
  switch (action.type) {
    default:
      return state;
  }
};

main.ts：删除 "provideStore({something1})" 将导致应用正常运行

import { bootstrap }    from '@angular/platform-browser-dynamic';
import { AppComponent } from './app.component';
import { disableDeprecatedForms, provideForms } from '@angular/forms';
import {AccountService} from "./account.service";
import {provideStore} from '@ngrx/store';
import {something1} from "./reducer";

bootstrap(AppComponent, [
  AccountService,
  disableDeprecatedForms(),
  provideForms(),
  provideStore({something1})
])
  .catch((err: any) => console.error(err));

Answer 1

已解决！

我在 systemjs.config.js 内部映射中将“@ngrx”的值从 vendor/@ngrx 更改为 'node_modules/@ngrx'。

reduce函数导致错误

The reduce function causing errors

javascript

store

rxjs

ngrx

angular