1 | import baseFlatten from './_baseFlatten.js';
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2 |
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3 | /** Used as references for various `Number` constants. */
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4 | var INFINITY = 1 / 0;
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5 |
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6 | /**
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7 | * Recursively flattens `array`.
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8 | *
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9 | * @static
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10 | * @memberOf _
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11 | * @since 3.0.0
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12 | * @category Array
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13 | * @param {Array} array The array to flatten.
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14 | * @returns {Array} Returns the new flattened array.
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15 | * @example
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16 | *
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17 | * _.flattenDeep([1, [2, [3, [4]], 5]]);
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18 | * // => [1, 2, 3, 4, 5]
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19 | */
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20 | function flattenDeep(array) {
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21 | var length = array == null ? 0 : array.length;
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22 | return length ? baseFlatten(array, INFINITY) : [];
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23 | }
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24 |
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25 | export default flattenDeep;
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