CODE EXAMPLE FOR JAVASCRIPT

ngx-toastr

import { CommonModule } from '@angular/common';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';

import { ToastrModule } from 'ngx-toastr';

@NgModule({
  imports: [
    CommonModule,
    BrowserAnimationsModule, // required animations module
    ToastrModule.forRoot(), // ToastrModule added
  ],
  bootstrap: [App],
  declarations: [App],
})
class MainModule {}