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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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const require_intersectionWith = require("../../array/intersectionWith.js"); const require_lazy = require("../_internal/lazy.js"); //#region src/fp/array/intersectionWith.ts /** * Creates a function that keeps values equal to at least one configured value. * * Equality is decided by the provided comparator. The returned function is * lazy-capable inside {@link pipe}. * * @template T - The type of elements in the piped array. * @template U - The type of elements in the configured array. * @param secondArray - Values to compare against the piped array. * @param areItemsEqual - Returns true when a piped value equals a configured value. * @returns A function that maps the piped array to its custom intersection. * * @example * import { intersectionWith, pipe } from 'es-toolkit/fp'; * * pipe([{ id: 1 }, { id: 2 }], intersectionWith([2], (item, id) => item.id === id)); * // => [{ id: 2 }] */ function intersectionWith(secondArray, areItemsEqual) { function intersectionWithEager(array) { return require_intersectionWith.intersectionWith(array, secondArray, areItemsEqual); } const intersectionWithLazy = require_lazy.createLazyFunction((value, _index, emit) => { if (secondArray.some((other) => areItemsEqual(value, other))) emit(value); }); return require_lazy.combineEagerAndLazyFunctions(intersectionWithEager, intersectionWithLazy); } //#endregion exports.intersectionWith = intersectionWith;