Error TS2322: Cannot assign a variable of type 'number' to a variable of type 'string'

Encountered an issue with TS2322 error while attempting to compile my Angular application.

The error occurs when using a variable [link] that represents the index number. When declaring this variable, I use: @Input() link!: string;

This link is used as a reference for routerLink in the following manner: [routerLink]="link"

If I change the type from link!: string to link!: number, then the TS2322 error is triggered: Type 'number' is not assignable to type 'string | any[] | null | undefined'. specifically in this part of the code:

In my understanding, routerLink expects a string value, so why does it trigger an error when 'link' is already defined as a string? Any thoughts on this?

angulartypescriptangular-routerlink

Answer №1

Ensure that when declaring a variable as a string, the value should also be of type string. For your situation, you could attempt passing the 'i' value as a string like this: [link]="'i'" Alternatively, you can change the @Input() link to: any; in order to pass any type of value

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