Merge pull request #1985 from Igorbek/master

LoDash: added _.mapValues

lodash/lodash.d.ts

@@ -3457,6 +3457,30 @@ declare module _ {
 		keys(object: any): string[];
 	}
 
+	//_.mapValues
+	interface LoDashStatic {
+		/**
+		* Creates an object with the same keys as object and values generated by running each own
+		* enumerable property of object through the callback. The callback is bound to thisArg and
+		* invoked with three arguments; (value, key, object).
+		*
+		* If a property name is provided for callback the created "_.pluck" style callback will return
+		* the property value of the given element.
+		*
+		* If an object is provided for callback the created "_.where" style callback will return true
+		* for elements that have the properties of the given object, else false.
+		*
+		* @param object The object to iterate over.
+		* @param callback The function called per iteration.
+		* @param thisArg `this` object in `iterator`, optional.
+		* @return Returns a new object with values of the results of each callback execution.
+		*/
+		mapValues<T, TResult>(obj: Dictionary<T>, callback: ObjectIterator<T, TResult>, thisArg?: any): Dictionary<TResult>;
+		mapValues<T>(obj: Dictionary<T>, where: Dictionary<T>): Dictionary<boolean>;
+		mapValues<T, TMapped>(obj: T, pluck: string): TMapped;
+		mapValues<T>(obj: T, callback: ObjectIterator<any, any>, thisArg?: any): T;
+	}
+
 	//_.merge
 	interface LoDashStatic {
 		/**