| 1 | module.exports = function(array, shallow) {
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| 2 | var result = [];
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| 3 |
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| 4 | function flatten(array, level) {
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| 5 | for (var n = 0; n < array.length; n++) {
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| 6 | var item = array[n];
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| 7 |
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| 8 | if (!(level >= 1 && shallow) && item instanceof Array) {
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| 9 | flatten(item, level + 1);
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| 10 | } else {
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| 11 | result.push(item);
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| 12 | }
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| 13 | }
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| 14 | }
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| 15 |
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| 16 | flatten(array, 0);
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| 17 |
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| 18 | return result;
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| 19 | };
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