diff --git a/iscroll/iscroll-lite.d.ts b/iscroll/iscroll-lite.d.ts
index c00250386..c01f5db47 100644
--- a/iscroll/iscroll-lite.d.ts
+++ b/iscroll/iscroll-lite.d.ts
@@ -42,6 +42,6 @@ declare class iScroll {
     scrollTo(x: number, y: number, time: number, relative: boolean): void;
     scrollToElement(element: string, time: number): void;
     disable(): void;
-    enalbe(): void;
+    enable(): void;
     stop(): void;
-}
\ No newline at end of file
+}
diff --git a/iscroll/iscroll.d.ts b/iscroll/iscroll.d.ts
index ead4e8e4a..a702ebb5e 100644
--- a/iscroll/iscroll.d.ts
+++ b/iscroll/iscroll.d.ts
@@ -68,8 +68,8 @@ declare class iScroll {
     scrollToElement(element: string, time: number): void;
     scrollToPage(pageX: number, pageY: number, time: number): void;
     disable(): void;
-    enalbe(): void;
+    enable(): void;
     stop(): void;
     zoom(x: number, y: number, scale: number, time: number): void;
     isReady(): boolean;
-}
\ No newline at end of file
+}
diff --git a/moment/moment.d.ts b/moment/moment.d.ts
index f2b5add84..523f5f6ea 100644
--- a/moment/moment.d.ts
+++ b/moment/moment.d.ts
@@ -124,6 +124,7 @@ interface Moment {
     daysInMonth(): number;
     isDST(): boolean;
 
+    isBefore(): boolean;
     isBefore(b: Moment): boolean;
     isBefore(b: string): boolean;
     isBefore(b: Number): boolean;
@@ -135,6 +136,7 @@ interface Moment {
     isBefore(b: Date, granularity: string): boolean;
     isBefore(b: Array, granularity: string): boolean;
 
+    isAfter(): boolean;
     isAfter(b: Moment): boolean;
     isAfter(b: string): boolean;
     isAfter(b: Number): boolean;