Tips for transferring a variable to a private function in Angular 2

I am having trouble with the following code snippet: Why is the year not being passed to the initGridOptions function? How can I ensure that it is properly visible there?

I attempted to make it public but that approach did not yield the desired result.

I'm uncertain whether it's necessary to keep the initGridOptions function private.

export class JobTimePhasingComponent implements OnInit, ComponentHasUnsavedChanges {

        public key: string = "timePhasing";
        public year: string;
        job: JobViewModel;

        constructor(
            private router: Router,
            private toastr: ToastsManager
        ) {
            this.initGridOptions();
        }

        ngOnInit(): void {
            this.refresh();
        }
         private initGridOptions(): void {
        ...
                colDefs.push({
                    headerName: this.year, (UNDEFINED)
                    field: "data.Total",
                    valueGetter: cellTotalValueGetter,
                    width: 100,
                });
        }

        refresh(): void {
            let jobId = +this.route.snapshot.parent.params['id'];
            this.jobService.getJob(jobId).then(result => {
                this.fy = result.Object.FinancialYearName;
            });
        }

Answer №1

When encountering an issue where a parameter or function is displaying as undefined, it's important to note that this is not related to accessibility but rather initialization. To resolve this problem, make sure to initialize the variable properly:

year: string = ''; // Set to any desired initial value

You can do this at the point of defining the variable or within methods such as OnInit or constructor. However, it's recommended to reserve the constructor for dependency injection purposes, keeping the initialization within the specific method like so:

this.year = ''; // Or set to another suitable initial value

By ensuring proper initialization, you can be confident that the variable will have a defined value when used elsewhere in your code.

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