diff --git a/src/lib/es5.d.ts b/src/lib/es5.d.ts
index 786c953b42c74..fab8fd0da0486 100644
--- a/src/lib/es5.d.ts
+++ b/src/lib/es5.d.ts
@@ -1375,14 +1375,18 @@ interface Array<T> {
     /**
      * Removes elements from an array and, if necessary, inserts new elements in their place, returning the deleted elements.
      * @param start The zero-based location in the array from which to start removing elements.
-     * @param deleteCount The number of elements to remove.
+     * @param deleteCount The number of elements to remove. Omitting this argument will remove all elements from the start
+     * paramater location to end of the array. If value of this argument is either a negative number, zero, undefined, or a type
+     * that cannot be converted to an integer, the function will evaluate the argument as zero and not remove any elements.
      * @returns An array containing the elements that were deleted.
      */
     splice(start: number, deleteCount?: number): T[];
     /**
      * Removes elements from an array and, if necessary, inserts new elements in their place, returning the deleted elements.
      * @param start The zero-based location in the array from which to start removing elements.
-     * @param deleteCount The number of elements to remove.
+     * @param deleteCount The number of elements to remove. If value of this argument is either a negative number, zero,
+     * undefined, or a type that cannot be converted to an integer, the function will evaluate the argument as zero and
+     * not remove any elements.
      * @param items Elements to insert into the array in place of the deleted elements.
      * @returns An array containing the elements that were deleted.
      */
diff --git a/tests/baselines/reference/completionEntryForUnionMethod.baseline b/tests/baselines/reference/completionEntryForUnionMethod.baseline
index 4a503b4a10a4c..c0e0ccc7c838d 100644
--- a/tests/baselines/reference/completionEntryForUnionMethod.baseline
+++ b/tests/baselines/reference/completionEntryForUnionMethod.baseline
@@ -4404,7 +4404,7 @@
                   "kind": "space"
                 },
                 {
-                  "text": "The number of elements to remove.",
+                  "text": "The number of elements to remove. Omitting this argument will remove all elements from the start\nparamater location to end of the array. If value of this argument is either a negative number, zero, undefined, or a type\nthat cannot be converted to an integer, the function will evaluate the argument as zero and not remove any elements.",
                   "kind": "text"
                 }
               ]
diff --git a/tests/baselines/reference/goToTypeDefinition_arrayType.baseline.jsonc b/tests/baselines/reference/goToTypeDefinition_arrayType.baseline.jsonc
index bb25003a8fc5a..1cd2c60375f26 100644
--- a/tests/baselines/reference/goToTypeDefinition_arrayType.baseline.jsonc
+++ b/tests/baselines/reference/goToTypeDefinition_arrayType.baseline.jsonc
@@ -87,14 +87,18 @@
 //     /**
 //      * Removes elements from an array and, if necessary, inserts new elements in their place, returning the deleted elements.
 //      * @param start The zero-based location in the array from which to start removing elements.
-//      * @param deleteCount The number of elements to remove.
+//      * @param deleteCount The number of elements to remove. Omitting this argument will remove all elements from the start
+//      * paramater location to end of the array. If value of this argument is either a negative number, zero, undefined, or a type
+//      * that cannot be converted to an integer, the function will evaluate the argument as zero and not remove any elements.
 //      * @returns An array containing the elements that were deleted.
 //      */
 //     splice(start: number, deleteCount?: number): T[];
 //     /**
 //      * Removes elements from an array and, if necessary, inserts new elements in their place, returning the deleted elements.
 //      * @param start The zero-based location in the array from which to start removing elements.
-//      * @param deleteCount The number of elements to remove.
+//      * @param deleteCount The number of elements to remove. If value of this argument is either a negative number, zero,
+//      * undefined, or a type that cannot be converted to an integer, the function will evaluate the argument as zero and
+//      * not remove any elements.
 //      * @param items Elements to insert into the array in place of the deleted elements.
 //      * @returns An array containing the elements that were deleted.
 //      */
@@ -340,14 +344,18 @@
 //     /**
 //      * Removes elements from an array and, if necessary, inserts new elements in their place, returning the deleted elements.
 //      * @param start The zero-based location in the array from which to start removing elements.
-//      * @param deleteCount The number of elements to remove.
+//      * @param deleteCount The number of elements to remove. Omitting this argument will remove all elements from the start
+//      * paramater location to end of the array. If value of this argument is either a negative number, zero, undefined, or a type
+//      * that cannot be converted to an integer, the function will evaluate the argument as zero and not remove any elements.
 //      * @returns An array containing the elements that were deleted.
 //      */
 //     splice(start: number, deleteCount?: number): T[];
 //     /**
 //      * Removes elements from an array and, if necessary, inserts new elements in their place, returning the deleted elements.
 //      * @param start The zero-based location in the array from which to start removing elements.
-//      * @param deleteCount The number of elements to remove.
+//      * @param deleteCount The number of elements to remove. If value of this argument is either a negative number, zero,
+//      * undefined, or a type that cannot be converted to an integer, the function will evaluate the argument as zero and
+//      * not remove any elements.
 //      * @param items Elements to insert into the array in place of the deleted elements.
 //      * @returns An array containing the elements that were deleted.
 //      */