Add new component for viewing statistic of content

src/app/components/shared/shared.module.ts

@@ -20,6 +20,7 @@ import { EssentialsModule } from '../essentials/essentials.module';
 import { SharedRoutingModule } from './shared-routing.module';
 import { ListStatisticComponent } from './list-statistic/list-statistic.component';
 import { ChartsModule } from 'ng2-charts';
+import { StatisticComponent } from './statistic/statistic.component';
 
 @NgModule({
   imports: [
@@ -46,7 +47,8 @@ import { ChartsModule } from 'ng2-charts';
     CommentCreatePageComponent,
     CommentListComponent,
     StatisticsPageComponent,
-    ListStatisticComponent
+    ListStatisticComponent,
+    StatisticComponent
   ],
   exports: [
     RoomJoinComponent,

src/app/components/shared/statistic/statistic.component.html

+<p>
+  statistic works!
+</p>

src/app/components/shared/statistic/statistic.component.spec.ts

+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { StatisticComponent } from './statistic.component';
+
+describe('StatisticComponent', () => {
+  let component: StatisticComponent;
+  let fixture: ComponentFixture<StatisticComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ StatisticComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(StatisticComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

src/app/components/shared/statistic/statistic.component.ts

+import { Component, OnInit } from '@angular/core';
+
+@Component({
+  selector: 'app-statistic',
+  templateUrl: './statistic.component.html',
+  styleUrls: ['./statistic.component.scss']
+})
+export class StatisticComponent implements OnInit {
+
+  constructor() { }
+
+  ngOnInit() {
+  }
+
+}