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1
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var baseFlatten = require('./_baseFlatten');
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2
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3
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/**
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4
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* Flattens `array` a single level deep.
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5
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*
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6
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* @static
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7
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* @memberOf _
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8
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* @since 0.1.0
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9
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* @category Array
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10
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* @param {Array} array The array to flatten.
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* @returns {Array} Returns the new flattened array.
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* @example
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*
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* _.flatten([1, [2, [3, [4]], 5]]);
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15
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* // => [1, 2, [3, [4]], 5]
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16
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*/
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17
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function flatten(array) {
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18
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var length = array == null ? 0 : array.length;
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19
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return length ? baseFlatten(array, 1) : [];
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20
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}
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21
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22
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module.exports = flatten;
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