Strict done!!

overlord/src/app/daybook/daybook-item.ts

@@ -9,4 +9,18 @@ export class DaybookItem {
   creditAmount: number;
   posted: boolean;
   url: string[];
+
+  public constructor(init?: Partial<DaybookItem>) {
+    this.id = '';
+    this.date = '';
+    this.type = '';
+    this.narration = '';
+    this.debitText = '';
+    this.debitAmount = 0;
+    this.creditText = '';
+    this.creditAmount = 0;
+    this.posted = true;
+    this.url = [];
+    Object.assign(this, init);
+  }
 }

overlord/src/app/daybook/daybook.component.ts

@@ -17,10 +17,10 @@ import { DaybookService } from './daybook.service';
 export class DaybookComponent implements OnInit {
   @ViewChild(MatPaginator, { static: true }) paginator?: MatPaginator;
   @ViewChild(MatSort, { static: true }) sort?: MatSort;
-  dataSource: DaybookDataSource;
+  info: Daybook = new Daybook();
+  dataSource: DaybookDataSource = new DaybookDataSource(this.info.body);
   form: FormGroup;
-  info: Daybook;
-  selectedRowId: string;
+  selectedRowId = '';
   /** Columns displayed in the table. Columns IDs can be added, removed, or reordered. */
   displayedColumns = [
     'date',
@@ -53,7 +53,7 @@ export class DaybookComponent implements OnInit {
         startDate: moment(this.info.startDate, 'DD-MMM-YYYY').toDate(),
         finishDate: moment(this.info.finishDate, 'DD-MMM-YYYY').toDate(),
       });
-      this.dataSource = new DaybookDataSource(this.paginator, this.sort, this.info.body);
+      this.dataSource = new DaybookDataSource(this.info.body, this.paginator, this.sort);
     });
   }
 

overlord/src/app/daybook/daybook.service.ts

@@ -16,7 +16,7 @@ const serviceName = 'DaybookService';
 export class DaybookService {
   constructor(private http: HttpClient, private log: ErrorLoggerService) {}
 
-  list(startDate: string, finishDate): Observable<Daybook> {
+  list(startDate: string | null, finishDate: string | null): Observable<Daybook> {
     const startDateWithSlash = startDate ? `/${startDate}` : '';
     const finishDateWithSlash = finishDate ? `/${finishDate}` : '';
     return <Observable<Daybook>>(

overlord/src/app/daybook/daybook.ts

@@ -4,4 +4,11 @@ export class Daybook {
   startDate: string;
   finishDate: string;
   body: DaybookItem[];
+
+  public constructor(init?: Partial<Daybook>) {
+    this.startDate = '';
+    this.finishDate = '';
+    this.body = [];
+    Object.assign(this, init);
+  }
 }