The loan component does not have a property called 'darkModeService' associated with it

I've been attempting to implement a dark theme for my Angular application, and although I've configured everything correctly, it doesn't seem to be working as expected.

Here is the code snippet:

 constructor(private bookService: BookService, private categoryService: CategoryService,  private formBuilder: FormBuilder, darkModeService: DarkModeService) {}
range = new FormGroup({
    fromDate: new FormControl('', Validators.required),
    toDate: new FormControl('', Validators.required)
});


darkMode$: Observable<boolean> = this.darkModeService.darkMode$;// encountered an issue at this point

  ngOnInit(): void {
    this.dateRangeForm = this.formBuilder.group({
      fromDate: new FormControl('', Validators.required),
      toDate: new FormControl('', Validators.required)
    });

  }
  onToggle(): void {
    this.darkModeService.toggle();//error occurs with this function
}

Answer №1

Could you please specify where your DarkModeService is being provided?

In addition, consider adding the following to the constructor of your class (placing private before darkModeService: DarkModeService):

constructor(private bookService: BookService, 
            private categoryService: CategoryService,  
            private formBuilder: FormBuilder, 
            private darkModeService: DarkModeService) {} // ensure it's private here
  range = new FormGroup({
    fromDate: new FormControl('', Validators.required),
    toDate: new FormControl('', Validators.required)
  });


darkMode$: Observable<boolean> = this.darkModeService.darkMode$;// also here

  ngOnInit(): void {
    this.dateRangeForm = this.formBuilder.group({
      fromDate: new FormControl('', Validators.required),
      toDate: new FormControl('', Validators.required)
    });

  }
  onToggle(): void {
    this.darkModeService.toggle();//issue arises at this point
  }

You can also opt for using public or readonly instead of private. The choice depends on your specific project requirements.

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