35 lines
1.1 KiB
JavaScript
35 lines
1.1 KiB
JavaScript
import { flattenDeep as flattenDeep$1 } from "../../array/flattenDeep.mjs";
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import { combineEagerAndLazyFunctions, createLazyFunction } from "../_internal/lazy.mjs";
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//#region src/fp/array/flattenDeep.ts
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/**
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* Creates a function that recursively flattens an array.
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*
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* The returned function is lazy-capable inside {@link pipe}. A trailing
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* short-circuiting operator can stop before later nested values are visited.
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*
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* @template T - The type of elements in the array.
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* @returns A function that maps the piped array to a deeply flattened array.
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*
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* @example
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* import { flattenDeep, pipe } from 'es-toolkit/fp';
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*
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* pipe([1, [2, [3]]], flattenDeep());
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* // => [1, 2, 3]
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*/
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function flattenDeep() {
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function flattenDeepEager(array) {
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return flattenDeep$1(array);
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}
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return combineEagerAndLazyFunctions(flattenDeepEager, createLazyFunction((value, _index, emit) => {
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emitDeep(value, emit);
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}));
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}
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function emitDeep(value, emit) {
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if (Array.isArray(value)) {
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for (let index = 0; index < value.length; index++) emitDeep(value[index], emit);
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return;
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}
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emit(value);
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}
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//#endregion
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export { flattenDeep };
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