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| import baseFlatten from './.internal/baseFlatten.js' | |
| /** | |
| * Flattens `array` a single level deep. | |
| * | |
| * @since 0.1.0 | |
| * @category Array | |
| * @param {Array} array The array to flatten. | |
| * @returns {Array} Returns the new flattened array. | |
| * @see flatMap, flatMapDeep, flatMapDepth, flattenDeep, flattenDepth | |
| * @example | |
| * | |
| * flatten([1, [2, [3, [4]], 5]]) | |
| * // => [1, 2, [3, [4]], 5] | |
| */ | |
| function flatten(array) { | |
| const length = array == null ? 0 : array.length | |
| return length ? baseFlatten(array, 1) : [] | |
| } | |
| export default flatten |