diff --git a/lodash/lodash-3.10-tests.ts b/lodash/lodash-3.10-tests.ts
index 683821044b..0a2debfa00 100644
--- a/lodash/lodash-3.10-tests.ts
+++ b/lodash/lodash-3.10-tests.ts
@@ -6162,20 +6162,42 @@ namespace TestFlowRight {
 
 // _.memoize
 namespace TestMemoize {
-    var testMemoizedFunction: _.MemoizedFunction;
-    var cache = <_.MapCache>testMemoizedFunction.cache;
-    interface TestMemoizedResultFn extends _.MemoizedFunction {
+    {
+        let memoizedFunction: _.MemoizedFunction;
+        let cache: _.MapCache = memoizedFunction.cache;
+    }
+
+    interface MemoizedResultFn extends _.MemoizedFunction {
         (a1: string, a2: number): boolean;
     }
-    var testMemoizeFn = (a1: string, a2: number) => a1.length > a2;
-    var testMemoizeResolverFn = (a1: string, a2: number) => a1 + a2;
-    var result: TestMemoizedResultFn;
-    result = _.memoize(testMemoizeFn);
-    result = _.memoize(testMemoizeFn, testMemoizeResolverFn);
-    result = _(testMemoizeFn).memoize().value();
-    result = _(testMemoizeFn).memoize(testMemoizeResolverFn).value();
-    result('foo', 1);
-    result.cache.get('foo1');
+
+    let memoizeFn: (a1: string, a2: number) => boolean;
+    let memoizeResolverFn: (a1: string, a2: number) => string;
+
+    {
+        let result: MemoizedResultFn;
+
+        result = _.memoize(memoizeFn);
+        result = _.memoize(memoizeFn, memoizeResolverFn);
+
+        result('foo', 1);
+        result.cache.get('foo1');
+    }
+
+    {
+        let result: _.LoDashImplicitObjectWrapper<MemoizedResultFn>;
+
+        result = _(memoizeFn).memoize();
+        result = _(memoizeFn).memoize(memoizeResolverFn);
+    }
+
+    {
+        let result: _.LoDashExplicitObjectWrapper<MemoizedResultFn>;
+
+        result = _(memoizeFn).chain().memoize();
+        result = _(memoizeFn).chain().memoize(memoizeResolverFn);
+    }
+
     _.memoize.Cache = {
         delete: key => false,
         get: key => undefined,
diff --git a/lodash/lodash-3.10.d.ts b/lodash/lodash-3.10.d.ts
index cb0e0b45c7..b92de15c89 100644
--- a/lodash/lodash-3.10.d.ts
+++ b/lodash/lodash-3.10.d.ts
@@ -9820,6 +9820,7 @@ declare module _ {
          * storing the result based on the arguments provided to the memoized function. By default, the first argument
          * provided to the memoized function is coerced to a string and used as the cache key. The func is invoked with
          * the this binding of the memoized function.
+         *
          * @param func The function to have its output memoized.
          * @param resolver The function to resolve the cache key.
          * @return Returns the new memoizing function.
@@ -9837,6 +9838,13 @@ declare module _ {
         memoize(resolver?: Function): LoDashImplicitObjectWrapper<T & MemoizedFunction>;
     }
 
+    interface LoDashExplicitObjectWrapper<T> {
+        /**
+         * @see _.memoize
+         */
+        memoize(resolver?: Function): LoDashExplicitObjectWrapper<T & MemoizedFunction>;
+    }
+
     //_.modArgs
     interface LoDashStatic {
         /**
diff --git a/lodash/lodash-tests.ts b/lodash/lodash-tests.ts
index 19af6c147f..7931acb2b2 100644
--- a/lodash/lodash-tests.ts
+++ b/lodash/lodash-tests.ts
@@ -6066,20 +6066,42 @@ namespace TestFlowRight {
 
 // _.memoize
 namespace TestMemoize {
-    var testMemoizedFunction: _.MemoizedFunction;
-    var cache = <_.MapCache>testMemoizedFunction.cache;
-    interface TestMemoizedResultFn extends _.MemoizedFunction {
+    {
+        let memoizedFunction: _.MemoizedFunction;
+        let cache: _.MapCache = memoizedFunction.cache;
+    }
+
+    interface MemoizedResultFn extends _.MemoizedFunction {
         (a1: string, a2: number): boolean;
     }
-    var testMemoizeFn = (a1: string, a2: number) => a1.length > a2;
-    var testMemoizeResolverFn = (a1: string, a2: number) => a1 + a2;
-    var result: TestMemoizedResultFn;
-    result = _.memoize(testMemoizeFn);
-    result = _.memoize(testMemoizeFn, testMemoizeResolverFn);
-    result = _(testMemoizeFn).memoize().value();
-    result = _(testMemoizeFn).memoize(testMemoizeResolverFn).value();
-    result('foo', 1);
-    result.cache.get('foo1');
+
+    let memoizeFn: (a1: string, a2: number) => boolean;
+    let memoizeResolverFn: (a1: string, a2: number) => string;
+
+    {
+        let result: MemoizedResultFn;
+
+        result = _.memoize(memoizeFn);
+        result = _.memoize(memoizeFn, memoizeResolverFn);
+
+        result('foo', 1);
+        result.cache.get('foo1');
+    }
+
+    {
+        let result: _.LoDashImplicitObjectWrapper<MemoizedResultFn>;
+
+        result = _(memoizeFn).memoize();
+        result = _(memoizeFn).memoize(memoizeResolverFn);
+    }
+
+    {
+        let result: _.LoDashExplicitObjectWrapper<MemoizedResultFn>;
+
+        result = _(memoizeFn).chain().memoize();
+        result = _(memoizeFn).chain().memoize(memoizeResolverFn);
+    }
+
     _.memoize.Cache = {
         delete: key => false,
         get: key => undefined,
diff --git a/lodash/lodash.d.ts b/lodash/lodash.d.ts
index 329c759e8b..bd996b9638 100644
--- a/lodash/lodash.d.ts
+++ b/lodash/lodash.d.ts
@@ -10545,6 +10545,7 @@ declare module _ {
          * storing the result based on the arguments provided to the memoized function. By default, the first argument
          * provided to the memoized function is coerced to a string and used as the cache key. The func is invoked with
          * the this binding of the memoized function.
+         *
          * @param func The function to have its output memoized.
          * @param resolver The function to resolve the cache key.
          * @return Returns the new memoizing function.
@@ -10562,6 +10563,13 @@ declare module _ {
         memoize(resolver?: Function): LoDashImplicitObjectWrapper<T & MemoizedFunction>;
     }
 
+    interface LoDashExplicitObjectWrapper<T> {
+        /**
+         * @see _.memoize
+         */
+        memoize(resolver?: Function): LoDashExplicitObjectWrapper<T & MemoizedFunction>;
+    }
+
     //_.overArgs (was _.modArgs)
     interface LoDashStatic {
         /**