typedash/dist/invert/index.d.ts

modern, type-safe collection of utility functions

import { Writable } from 'type-fest';

/**
 * Inverts the keys and values of an object.
 * @param object The object to invert.
 * @returns A new object with the keys and values inverted.
 *
 * If the object has duplicate values, the last key will be used.
 * @example
 * ```typescript
 * invert({
 *   a: 'x',
 *   b: 'y',
 *   c: 'z'
 * }); // { x: 'a', y: 'b', z: 'c' }
 * ```
 */
declare function invert<const T extends Record<PropertyKey, PropertyKey>>(object: T): Writable<Inverted<T>>;
type Inverted<T extends Record<PropertyKey, PropertyKey>> = {
    [K in keyof T as T[K]]: K;
};

export { invert };