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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 { flatMapDepth } from "./flatMapDepth.mjs"; //#region src/compat/array/flatMap.ts /** * Creates a flattened array of values by running each element in collection through iteratee and flattening the mapped results. * * @template R * @param collection - The collection to iterate over. * @param [iteratee=identity] - The function invoked per iteration. * @returns Returns the new flattened array. * * @example * flatMap([1, 2], n => [n, n * 2]); * // => [1, 2, 2, 4] */ function flatMap(collection, iteratee) { return flatMapDepth(collection, iteratee, 1); } //#endregion export { flatMap };