--- /dev/null
+var baseClone = require('./_baseClone');
+
+/** Used to compose bitmasks for cloning. */
+var CLONE_DEEP_FLAG = 1,
+ CLONE_SYMBOLS_FLAG = 4;
+
+/**
+ * This method is like `_.cloneWith` except that it recursively clones `value`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to recursively clone.
+ * @param {Function} [customizer] The function to customize cloning.
+ * @returns {*} Returns the deep cloned value.
+ * @see _.cloneWith
+ * @example
+ *
+ * function customizer(value) {
+ * if (_.isElement(value)) {
+ * return value.cloneNode(true);
+ * }
+ * }
+ *
+ * var el = _.cloneDeepWith(document.body, customizer);
+ *
+ * console.log(el === document.body);
+ * // => false
+ * console.log(el.nodeName);
+ * // => 'BODY'
+ * console.log(el.childNodes.length);
+ * // => 20
+ */
+function cloneDeepWith(value, customizer) {
+ customizer = typeof customizer == 'function' ? customizer : undefined;
+ return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);
+}
+
+module.exports = cloneDeepWith;