1 var baseFlatten = require('./_baseFlatten');
4 * Flattens `array` a single level deep.
10 * @param {Array} array The array to flatten.
11 * @returns {Array} Returns the new flattened array.
14 * _.flatten([1, [2, [3, [4]], 5]]);
15 * // => [1, 2, [3, [4]], 5]
17 function flatten(array) {
18 var length = array == null ? 0 : array.length;
19 return length ? baseFlatten(array, 1) : [];
22 module.exports = flatten;