What is the best way to define a typescript interface as a class property?

Here is an example of how I have defined an interface:

export interface Donor{
    donorName: string;
    donorId: string;
    donorPassword:string
    donorAge: number
    fitnessReport: string
    physicianApproval: string
}

In the following class, I want to use a variable of type 'Donor' as a private attribute:

class SawtoothService {

  //Donor component
  private currentDonor: <Donor>;

  public setDonor(currentDonor) {
    this.currentDonor = currentDonor;
   }

}

I will set it to a specific implementation by calling the function setDonor.

However, there seems to be an error in this line:

private currentDonor: <Donor>;

Answer №1

Diving a bit deeper into the explanation provided in the correct response, the symbols < and > are utilized for denoting generics*. For instance, if you were dealing with multiple donors, you might use Array<Donor>.

In this scenario, you simply have a single Donor object, so there is no need for the angle brackets. The syntax should match that of your donorName: string declaration, except the data type here is Donor, not string.

* It's worth noting that these symbols are also used for comparison purposes, but I assume you are already familiar with that concept and it does not come into play here.

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