Array map to new type in TypeScript

In my recent Nextjs project, need to shape object array to a different type.

Mapping through the entire array in my arrow function and return the new object.

Even though the return statement work. The type is still unknown. So, I have to covert the result into array of my type.

Mapping Array Type

export type LatestInvoiceType={
  id:number;
  amount: number;
  customer:{
    name:string;
    email:string;
    image_url:string;
  }
}

New Type

 export type LatestInvoice = {

  id: string;

  name: string;

  image_url: string;

  email: string;

  amount: string;

};

Solution to the problem

Here is my solution to the problem

    const latestInvoices  = invoices.map(invoice =>  {
      return{
      id:invoice.id.toString(),
      amount:invoice.amount.toString(),
      name:invoice.customer?.name,
      email:invoice.customer?.email,
      image_url:invoice.customer?.image_url
      };
    }) as LatestInvoice[] ;

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