1 var baseFlatten = require('./internal/baseFlatten');
4 * This method is like `_.flatten` except that it recursively flattens `array`.
9 * @param {Array} array The array to recursively flatten.
10 * @returns {Array} Returns the new flattened array.
13 * _.flattenDeep([1, [2, 3, [4]]]);
16 function flattenDeep(array) {
17 var length = array ? array.length : 0;
18 return length ? baseFlatten(array, true) : [];
21 module.exports = flattenDeep;