Dynamic Tab Title in Angular

#javascript #angular #webdev #dynamictabtitle

With Angular 14, Now we can generate dynamic tab titles with ease.

1. Title property in Routes

Use Case:

Users page with users as tab name.(Users)
Orders page with orders as tab name(Orders)

Then simply use title property in Routes as below

Code



export const APP_ROUTES: Routes = [
  {path: '/users', component: UsersComponent, title: 'Users'},
  {path: '/orders', component: OrdersComponent, title: 'Orders'}
];

2. Title with Resolve

Use Case:

Users page with current user name in tab name.(User- Bharath)
Orders page with order id in tab name.(Order Id:1)

Then we should create a service which implement Resolve class from Router module as shown below.

Code:



@Injectable({
  providedIn: "root"
})
export class CustomTitleResolver implements Resolve<string> {

  resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<string> | Promise<string> | string {
// Have fun with naming
    return "<<project-name>> -" + route.paramMap.get("id") || "";
  }
}

Update Routes with title property



export const APP_ROUTES: Routes = [
  {path: '/users/:id', component: UsersComponent, title: CustomTitleResolver },
  {path: '/orders/:id', component: OrdersComponent, title: CustomTitleResolver }
];

3. Title Strategy

Use Case:

If you want a more generalized pattern, that will be applied **all over the application.

Prefixing a text to tab title.(Project X Users)
Suffixing a text to tab title.(Users Project X )

Then create a service that extends TitleStrategy and add it as Provider in AppModule.

Code



@Injectable({
  providedIn: "root"
})
export class CustomTitleStrategy extends TitleStrategy  {
  constructor(private readonly title: Title) {
    super();
  }

  override updateTitle(routerState: RouterStateSnapshot): void {
    const title = this.buildTitle(routerState);
    if (title !== undefined) {
      this.title.setTitle(`myImpact (${title})`);
    } else {
      this.title.setTitle('myImpact');
    }
  }
}

Naming Strategy should be added as provider in app module, so that angular is aware that you have provided an alternative Naming strategy.



@NgModule({

  declarations: [

  ],

  imports: [

  ],

  providers: [{

    provide: TitleStrategy,

    useClass: IAMTitleStrategy

  }],

  bootstrap: [AppComponent]

})

export class AppModule {

}