juplo.de Git - examples/angular-tour-of-heroes/blob - src/app/reducers/vorgang.ts

   1 import { createReducer, on } from '@ngrx/store';
   2 import { increment, decrement, reset } from '../actions/vorgang';
   3
   4 export interface State {
   5   counter: number;
   6 }
   7
   8 export const initialState: State = { counter: 0 };
   9
  10 const REDUCER = createReducer(initialState,
  11   on(increment, state => {
  12     return { counter: state.counter + 1 };
  13   }),
  14   on(decrement, state => {
  15     return { counter: state.counter - 1 };
  16   }),
  17   on(reset, state => {
  18     return { counter: 0 };
  19   }),
  20 );
  21
  22 export function reducer(state, action) {
  23   return REDUCER(state, action);
  24 }