Issues with relocating function during the NgOnInit lifecycle hook in an Angular 2 application

Currently, I am facing an issue with my Angular 2 app where the data sometimes lags in populating, causing a page component to load before the information is ready to display. When this happens, I can manually refresh the page for the data to appear correctly, but obviously, this is not the desired behavior. To address this issue, I attempted to move the function responsible for fetching this data into the ngOnInit lifecycle hook. However, when trying to do so, my IDE flagged an error that I cannot seem to understand.

This is an excerpt from the relevant part of my current component:

export class DoctorGeneralComponent extends EventHandler implements OnInit {

    @Input('doctor')
    public doctor: DoctorModel;

    constructor(private dialog: MdDialog) {
        super();
    }

    ngOnInit() {

     }

    public getPropertyStatus(name: string): string {
        return this.doctor ? this.doctor.getPropertyStatus(name) : '';
    }
}

When attempting to move the "getPropertyStatus" method into the ngOnInit like this:

ngOnInit() {
   public getPropertyStatus(name: string): string {
    return this.doctor ? this.doctor.getPropertyStatus(name) : '';
}

...I encounter a TypeScript error stating "declaration or statement expected."

If you have any insights on what might be causing this issue and how I can successfully include this method within my ngOnInit lifecycle hook, your assistance would be greatly appreciated.

Answer №1

To ensure proper execution, call this function inside ngOnInit while declaring it outside:

ngOnInit() {
   this.checkPropertyStatus("specific name");
}

private checkPropertyStatus(name: string): string {
  return this.doctor ? this.doctor.getPropertyStatus(name) : '';
}

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