diff --git a/src/lib/es5.d.ts b/src/lib/es5.d.ts
index 820a90554eaea..e08534d8ba94f 100644
--- a/src/lib/es5.d.ts
+++ b/src/lib/es5.d.ts
@@ -1577,7 +1577,7 @@ interface Int8Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
+    find(predicate: (value: number, index: number, obj: Int8Array) => boolean, thisArg?: any): number | undefined;
 
     /**
       * Returns the index of the first element in the array where predicate is true, and -1
@@ -1588,7 +1588,7 @@ interface Int8Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    findIndex(predicate: (value: number, index: number, obj: Int8Array) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
@@ -1844,7 +1844,7 @@ interface Uint8Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
+    find(predicate: (value: number, index: number, obj: Uint8Array) => boolean, thisArg?: any): number | undefined;
 
     /**
       * Returns the index of the first element in the array where predicate is true, and -1
@@ -1855,7 +1855,7 @@ interface Uint8Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    findIndex(predicate: (value: number, index: number, obj: Uint8Array) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
@@ -2111,7 +2111,7 @@ interface Uint8ClampedArray {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
+    find(predicate: (value: number, index: number, obj: Uint8ClampedArray) => boolean, thisArg?: any): number | undefined;
 
     /**
       * Returns the index of the first element in the array where predicate is true, and -1
@@ -2122,7 +2122,7 @@ interface Uint8ClampedArray {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    findIndex(predicate: (value: number, index: number, obj: Uint8ClampedArray) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
@@ -2377,7 +2377,7 @@ interface Int16Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
+    find(predicate: (value: number, index: number, obj: Int16Array) => boolean, thisArg?: any): number | undefined;
 
     /**
       * Returns the index of the first element in the array where predicate is true, and -1
@@ -2388,7 +2388,7 @@ interface Int16Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    findIndex(predicate: (value: number, index: number, obj: Int16Array) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
@@ -2644,7 +2644,7 @@ interface Uint16Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
+    find(predicate: (value: number, index: number, obj: Uint16Array) => boolean, thisArg?: any): number | undefined;
 
     /**
       * Returns the index of the first element in the array where predicate is true, and -1
@@ -2655,7 +2655,7 @@ interface Uint16Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    findIndex(predicate: (value: number, index: number, obj: Uint16Array) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
@@ -2911,7 +2911,7 @@ interface Int32Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
+    find(predicate: (value: number, index: number, obj: Int32Array) => boolean, thisArg?: any): number | undefined;
 
     /**
       * Returns the index of the first element in the array where predicate is true, and -1
@@ -2922,7 +2922,7 @@ interface Int32Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    findIndex(predicate: (value: number, index: number, obj: Int32Array) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
@@ -3178,7 +3178,7 @@ interface Uint32Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
+    find(predicate: (value: number, index: number, obj: Uint32Array) => boolean, thisArg?: any): number | undefined;
 
     /**
       * Returns the index of the first element in the array where predicate is true, and -1
@@ -3189,7 +3189,7 @@ interface Uint32Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    findIndex(predicate: (value: number, index: number, obj: Uint32Array) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
@@ -3444,7 +3444,7 @@ interface Float32Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
+    find(predicate: (value: number, index: number, obj: Float32Array) => boolean, thisArg?: any): number | undefined;
 
     /**
       * Returns the index of the first element in the array where predicate is true, and -1
@@ -3455,7 +3455,7 @@ interface Float32Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    findIndex(predicate: (value: number, index: number, obj: Float32Array) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.
@@ -3712,7 +3712,7 @@ interface Float64Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    find(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number | undefined;
+    find(predicate: (value: number, index: number, obj: Float64Array) => boolean, thisArg?: any): number | undefined;
 
     /**
       * Returns the index of the first element in the array where predicate is true, and -1
@@ -3723,7 +3723,7 @@ interface Float64Array {
       * @param thisArg If provided, it will be used as the this value for each invocation of
       * predicate. If it is not provided, undefined is used instead.
       */
-    findIndex(predicate: (value: number, index: number, obj: Array<number>) => boolean, thisArg?: any): number;
+    findIndex(predicate: (value: number, index: number, obj: Float64Array) => boolean, thisArg?: any): number;
 
     /**
       * Performs the specified action for each element in an array.