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es-toolkit

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A state-of-the-art, high-performance JavaScript utility library with a small bundle size and strong type annotations.

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import { compact as compact$1 } from "../../array/compact.mjs"; import { combineEagerAndLazyFunctions, createLazyFunction } from "../_internal/lazy.mjs"; //#region src/fp/array/compact.ts /** * Creates a function that removes falsey values from an array. Use it with {@link pipe}. * * Falsey values include false, null, 0, -0, 0n, an empty string, undefined, * and NaN. The returned function is lazy-capable inside {@link pipe}, so a * trailing short-circuiting operator such as {@link take} can stop once enough * truthy values have been emitted. * * @template T - The type of elements in the array. * @returns A function that maps a readonly array to a new array with falsey values removed. * * @example * import { compact, pipe } from 'es-toolkit/fp'; * * pipe([0, 1, false, 2, '', 3], compact()); * // => [1, 2, 3] */ function compact() { function compactEager(array) { return compact$1(array); } return combineEagerAndLazyFunctions(compactEager, createLazyFunction((value, _index, emit) => { if (value) emit(value); })); } //#endregion export { compact };