27 lines
1.5 KiB
JavaScript
27 lines
1.5 KiB
JavaScript
|
const require_identity = require("../../function/identity.js");
|
||
|
|
const require_iteratee = require("../util/iteratee.js");
|
||
|
|
const require_flatten = require("./flatten.js");
|
||
|
|
const require_map = require("./map.js");
|
||
|
|
//#region src/compat/array/flatMapDepth.ts
|
||
|
|
/**
|
||
|
|
* Creates a flattened array of values by running each element through iteratee and flattening the mapped results up to depth times.
|
||
|
|
*
|
||
|
|
* @template T, R
|
||
|
|
* @param {Record<string, ArrayLike<T | ListOfRecursiveArraysOrValues<T>> | T> | Record<number, ArrayLike<T | ListOfRecursiveArraysOrValues<T>> | T> | ArrayLike<T> | object | null | undefined} collection - The array or object to iterate over.
|
||
|
|
* @param {((value: T, index: number, array: ArrayLike<T>) => ArrayLike<R | RecursiveArray<R>> | R) | ((value: T[keyof T], key: string, object: T) => ArrayLike<R | RecursiveArray<R>> | R) | string | object} [iteratee] - The function that produces the new array elements.
|
||
|
|
* @param {number} [depth=1] - The maximum recursion depth.
|
||
|
|
* @returns {T[] | R[] | any[] | boolean[]} A new array that has been flattened up to the specified depth.
|
||
|
|
*
|
||
|
|
* @example
|
||
|
|
* flatMapDepth([1, 2, 3], n => [[n, n]], 2);
|
||
|
|
* // => [1, 1, 2, 2, 3, 3]
|
||
|
|
*/
|
||
|
|
function flatMapDepth(collection, iteratee$1 = require_identity.identity, depth = 1) {
|
||
|
|
if (collection == null) return [];
|
||
|
|
const iterateeFn = require_iteratee.iteratee(iteratee$1);
|
||
|
|
const mapped = require_map.map(collection, iterateeFn);
|
||
|
|
return require_flatten.flatten(mapped, depth);
|
||
|
|
}
|
||
|
|
//#endregion
|
||
|
|
exports.flatMapDepth = flatMapDepth;
|