/**
 * @description Constructs a type by omitting all properties from T whose value type is assignable to P.
 * @template T The original object type.
 * @template P The target value type to omit.
 */
type OmitByType<T, P> = {
  [K in keyof T as T[K] extends P ? never : K]: T[K];
};

// --- Usage Example ---
interface Product {
  id: string;
  name: string;
  price: number;
  description: string;
  stock: number;
  isActive: boolean;
  lastUpdated: Date;
  calculateTax: (amount: number) => number;
}

// Omit properties whose values are strings
type WithoutStrings = OmitByType<Product, string>;
/* Expected:
{
  price: number;
  stock: number;
  isActive: boolean;
  lastUpdated: Date;
  calculateTax: (amount: number) => number;
}
*/
const productWithoutStrings: WithoutStrings = {
  price: 99.99,
  stock: 150,
  isActive: true,
  lastUpdated: new Date(),
  calculateTax: (amount) => amount * 0.05,
};

// Omit properties whose values are numbers
type WithoutNumbers = OmitByType<Product, number>;
/* Expected:
{
  id: string;
  name: string;
  description: string;
  isActive: boolean;
  lastUpdated: Date;
  calculateTax: (amount: number) => number;
}
*/