1 var baseFlatten = require('./internal/baseFlatten');
4 * Flattens `array` a single level.
9 * @param {Array} array The array to flatten.
10 * @returns {Array} Returns the new flattened array.
13 * _.flatten([1, [2, 3, [4]]]);
14 * // => [1, 2, 3, [4]]
16 function flatten(array) {
17 var length = array ? array.length : 0;
18 return length ? baseFlatten(array) : [];
21 module.exports = flatten;