@open-formulieren/formio-builder/dist/types/index.d.ts

An opinionated Formio webform builder for Open Forms

export * from './schemas';
export * from './paths';
/**
 * PropertyType extracts the type of a property given as `P` from the (union) type `T`.
 *
 * It helps narrowing down the property check on an object once it's established that
 * a property exists.
 */
type PropertyType<T, P extends PropertyKey> = T extends unknown ? P extends keyof T ? T[P] : never : never;
export declare function hasOwnProperty<X extends object, Y extends PropertyKey>(obj: X, prop: Y): obj is X & Record<Y, PropertyType<X, Y>>;
/**
 * Filter a given type by a given expected value type.
 *
 * E.g. with a type:
 *
 * interface Test {
 *   foo: string;
 *   bar: string;
 *   baz: number;
 * };
 *
 * FilterByValueType<Test, string> == {foo: string, bar: string}
 *
 * See https://stackoverflow.com/a/63990350
 */
export type FilterByValueType<T, VT> = {
    [P in keyof T as T[P] extends VT ? P : never]: T[P];
};