angular - Using @ngrx/store in Angular2 -

i working on sample application using angular 2 , @ngrx/store(for state management)

when execute below code not getting error , expected output not displayed.

// employeestate.ts  export interface employee {                             id: number;                             name: string;                                isactive: boolean;                           } 

// feature module es.module.ts

import { ngmodule } '@angular/core'; import { routermodule } '@angular/router'; import { storemodule } '@ngrx/store'; import { commonmodule } '@angular/common'; import { employeecomponent } './employee.component';  import { employee } './employeestate'; import { empreducer } './employeereducer';  @ngmodule({            imports:[   routermodule.forchild([                        {path:'emp' , component: employeecomponent}                        ]),                        storemodule.providestore([{employee: empreducer}]),                        commonmodule                     ],             exports:[],            providers:[],            declarations:[employeecomponent] })    export class esmodule { } 

employeereducer.ts

import { action , actionreducer } '@ngrx/store'; import { employee } './employeestate';  var emp: employee = { id: 1 , name: 'testname' , isactive: true };  export const empreducer : actionreducer<employee> = ( state: employee = emp ,    action: action) => {  return state; } 

employee.component.ts

import { component , changedetectionstrategy} '@angular/core'; import { store } '@ngrx/store'; import { observable } 'rxjs/observable';  import { employee } './employeestate';  interface appstate {     employee: employee;  }   @component({                selector:'',                template: `                <h2> employee name is: {{emp$.name | async}}</h2>               `   })    export class employeecomponent {      emp$: observable<employee>;      constructor(private store: store<appstate>) {     this.emp$ = this.store.select<employee>('employee');     }    } 

when employeecomponent gets displayed expecting output "employee name is: testname" instead "employee name is:" . idea issue in code.