@typedly/array/lib/unique.type.d.ts

A TypeScript type definitions package to handle array-related operations.

/**
 * @description Returns the unique values from generic type variable `Array`.
 * @export
 * @template {readonly Type[]} Array
 * @template [Type=any]
 * @example
 * import { Unique } from '@typedly/array';
 *
 * type Example1 = Unique<[1, 2, 2, 3, 3, 3]>; // [1, 2, 3]
 * const example1: Example1 = [1, 2, 3];
 */
export type Unique<Array extends readonly Type[], Type = any> = Array extends [infer First, ...infer Rest] ? First extends Rest[number] ? Unique<Rest> : [First, ...Unique<Rest>] : [];