| 1 | /*!
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| 2 | * arr-flatten <https://github.com/jonschlinkert/arr-flatten>
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| 3 | *
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| 4 | * Copyright (c) 2014-2017, Jon Schlinkert.
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| 5 | * Released under the MIT License.
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| 6 | */
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| 7 |
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| 8 | ;
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| 9 |
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| 10 | module.exports = function (arr) {
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| 11 | return flat(arr, []);
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| 12 | };
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| 13 |
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| 14 | function flat(arr, res) {
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| 15 | var i = 0, cur;
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| 16 | var len = arr.length;
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| 17 | for (; i < len; i++) {
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| 18 | cur = arr[i];
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| 19 | Array.isArray(cur) ? flat(cur, res) : res.push(cur);
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| 20 | }
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| 21 | return res;
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| 22 | }
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