ts-has-own-property/src/index.ts

Fix for Object.hasOwnProperty, which normally just returns a boolean, which is not good when you care about strong typing

const _hasOwnProperty = Object.prototype.hasOwnProperty;

export const hasOwnProperty = <TObject extends object, TProperty extends PropertyKey>(
  object: TObject,
  property: TProperty
): object is TObject & Record<TProperty, unknown> => _hasOwnProperty.call(object, property);

export default hasOwnProperty;