Bump to v3.8.0.

internal/createObjectMapper.js

@@ -0,0 +1,26 @@
+import baseCallback from './baseCallback';
+import baseForOwn from './baseForOwn';
+
+/**
+ * Creates a function for `_.mapKeys` or `_.mapValues`.
+ *
+ * @private
+ * @param {boolean} [isMapKeys] Specify mapping keys instead of values.
+ * @returns {Function} Returns the new map function.
+ */
+function createObjectMapper(isMapKeys) {
+  return function(object, iteratee, thisArg) {
+    var result = {};
+    iteratee = baseCallback(iteratee, thisArg, 3);
+
+    baseForOwn(object, function(value, key, object) {
+      var mapped = iteratee(value, key, object);
+      key = isMapKeys ? mapped : key;
+      value = isMapKeys ? value : mapped;
+      result[key] = value;
+    });
+    return result;
+  };
+}
+
+export default createObjectMapper;