//#region src/Array/flatMap.d.ts
/**
 * # flatMap
 *
 * ```ts
 * function Array.flatMap<T, U>(
 *     target: readonly T[],
 *     mapper: (
 *         value: NoInfer<T>,
 *         index: number,
 *         target: readonly NoInfer<T>[],
 *     ) => U[],
 * ): readonly U[]
 * ```
 *
 * Maps each element in `array` using the `mapper` function and flattens the result by one level.
 *
 * ## Example
 *
 * ```ts [data-first]
 * import { Array } from "@monstermann/array";
 *
 * Array.flatMap([1, 2, 3], (x) => [x, x * 2]); // [1, 2, 2, 4, 3, 6]
 * ```
 *
 * ```ts [data-last]
 * import { Array } from "@monstermann/array";
 *
 * pipe(
 *     [1, 2, 3],
 *     Array.flatMap((x) => [x, x * 2]),
 * ); // [1, 2, 2, 4, 3, 6]
 * ```
 *
 */
declare const flatMap: {
  <T, U>(mapper: (value: NoInfer<T>, index: number, target: readonly NoInfer<T>[]) => U[]): (target: T[]) => U[];
  <T, U>(mapper: (value: NoInfer<T>, index: number, target: readonly NoInfer<T>[]) => U[]): (target: readonly T[]) => readonly U[];
  <T, U>(target: T[], mapper: (value: NoInfer<T>, index: number, target: readonly NoInfer<T>[]) => U[]): U[];
  <T, U>(target: readonly T[], mapper: (value: NoInfer<T>, index: number, target: readonly NoInfer<T>[]) => U[]): readonly U[];
};
//#endregion
export { flatMap };