Create utility getMergedArrayWithoutDuplicates (#89)

Author: trivikr

.changeset/thirty-actors-relate.md

@@ -0,0 +1,5 @@
+---
+"aws-sdk-js-codemod": patch
+---
+
+Create utility getMergedArrayWithoutDuplicates

src/transforms/v2-to-v3/utils/getMergedArrayWithoutDuplicates.ts

@@ -0,0 +1,2 @@
+export const getMergedArrayWithoutDuplicates = <T>(arr1: Array<T>, arr2: Array<T>) =>
+  arr1.concat(arr2.filter((arr2Item) => arr1.indexOf(arr2Item) < 0));

src/transforms/v2-to-v3/utils/getV2ClientNames.ts

@@ -1,5 +1,7 @@
 import { Collection, Identifier, JSCodeshift, MemberExpression } from "jscodeshift";
 
+import { getMergedArrayWithoutDuplicates } from "./getMergedArrayWithoutDuplicates";
+
 export interface GetV2ClientNamesOptions {
   v2DefaultModuleName: string;
   v2ClientModuleNames: string[];
@@ -23,10 +25,5 @@ export const getV2ClientNames = (
       (newExpression) => ((newExpression.callee as MemberExpression).property as Identifier).name
     );
 
-  // Merge v2ClientNamesFromDefaultModule with v2ClientModuleNames with duplicates removed.
-  return v2ClientNamesFromDefaultModule.concat(
-    v2ClientModuleNames.filter(
-      (v2ClientModuleName) => v2ClientNamesFromDefaultModule.indexOf(v2ClientModuleName) < 0
-    )
-  );
+  return getMergedArrayWithoutDuplicates(v2ClientNamesFromDefaultModule, v2ClientModuleNames);
 };