_.reduceRight/_.foldr

lodash/lodash-tests.ts

@@ -303,6 +303,10 @@ result = <any>_.reduce({ 'a': 1, 'b': 2, 'c': 3 }, function(result, num, key) {
 	  return result;
 	}, {});
 
+result = <any>_.reduceRight([[0, 1], [2, 3], [4, 5]], function(a, b) { return a.concat(b); }, []);
+
+	result = <any>_.foldr([[0, 1], [2, 3], [4, 5]], function(a, b) { return a.concat(b); }, []);
+
 result = <boolean>_.some([null, 0, 'yes', false], Boolean);
 result = <boolean>_.some(foodsCombined, 'organic');
 result = <boolean>_.some(foodsCombined, { 'type': 'meat' });

lodash/lodash.d.ts

@@ -1283,6 +1283,30 @@ declare module _ {
 			accumulator?: TResult,
 			thisArg?: any): TResult;
 
+	/**
+	* This method is like _.reduce except that it iterates over elements of a collection from 
+	* right to left.
+	* @param collection The collection to iterate over.
+	* @param callback The function called per iteration.
+	* @param accumulator Initial value of the accumulator.
+	* @param thisArg The this binding of callback.
+	* @return The accumulated value.
+	**/
+	export function reduceRight<T, TResult>(
+		collection: Collection<T>,
+		callback: MemoIterator<T, TResult>,
+		accumulator?: TResult,
+		thisArg?: any): TResult;
+
+	/**
+	* @see _.reduceRight
+	**/
+	export function foldr<T, TResult>(
+		collection: Collection<T>,
+		callback: MemoIterator<T, TResult>,
+		accumulator?: TResult,
+		thisArg?: any): TResult;
+
 	/**
 	* Checks if the callback returns a truey value for any element of a collection. The function 
 	* returns as soon as it finds a passing value and does not iterate over the entire collection. 
@@ -1367,30 +1391,7 @@ declare module _ {
 
 	
 
-	/**
-	* The right-associative version of reduce. Delegates to the JavaScript 1.8 version of
-	* reduceRight, if it exists. Foldr is not as useful in JavaScript as it would be in a
-	* language with lazy evaluation.
-	* @param list Reduces the elements of this array.
-	* @param iterator Reduce iterator function for each element in `list`.
-	* @param memo Initial reduce state.
-	* @param context `this` object in `iterator`, optional.
-	* @return Reduced object result.
-	**/
-	export function reduceRight<T, TResult>(
-		list: Collection<T>,
-		iterator: MemoIterator<T, TResult>,
-		memo?: TResult,
-		context?: any): TResult;
-
-	/**
-	* @see _.reduceRight
-	**/
-	export function foldr<T, TResult>(
-		list: Collection<T>,
-		iterator: MemoIterator<T, TResult>,
-		memo?: TResult,
-		context?: any): TResult;
+