From a8bd927ee19d105984db5f1608c296b7554e3c86 Mon Sep 17 00:00:00 2001
From: Gustavo Perdomo <gperdomor@gmail.com>
Date: Thu, 22 Jun 2023 17:38:54 -0400
Subject: [PATCH] feat(nest): added es2021 support for nest generators (#17726)

Co-authored-by: Caleb Ukle <caleb.ukle+github@pm.me>
---
 docs/generated/packages/nest/generators/library.json       | 7 ++++---
 .../nest/src/generators/application/application.spec.ts    | 2 +-
 .../nest/src/generators/application/lib/update-tsconfig.ts | 2 +-
 packages/nest/src/generators/library/library.spec.ts       | 6 +++---
 packages/nest/src/generators/library/schema.d.ts           | 3 ++-
 packages/nest/src/generators/library/schema.json           | 7 ++++---
 6 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/docs/generated/packages/nest/generators/library.json b/docs/generated/packages/nest/generators/library.json
index 25d83cb3e92bdf..d2132961017dc5 100644
--- a/docs/generated/packages/nest/generators/library.json
+++ b/docs/generated/packages/nest/generators/library.json
@@ -92,9 +92,9 @@
         "default": "node"
       },
       "target": {
-        "description": "The ES target, Nest suggest using es6 or higher.",
+        "description": "The ES target, Nest suggest using es2021 or higher.",
         "type": "string",
-        "default": "es6",
+        "default": "es2021",
         "enum": [
           "es5",
           "es6",
@@ -104,7 +104,8 @@
           "es2017",
           "es2018",
           "es2019",
-          "es2020"
+          "es2020",
+          "es2021"
         ]
       },
       "strict": {
diff --git a/packages/nest/src/generators/application/application.spec.ts b/packages/nest/src/generators/application/application.spec.ts
index c3a722bcb7e9f3..de5103edabc826 100644
--- a/packages/nest/src/generators/application/application.spec.ts
+++ b/packages/nest/src/generators/application/application.spec.ts
@@ -51,7 +51,7 @@ describe('application generator', () => {
       `apps/${appDirectory}/tsconfig.app.json`
     );
     expect(tsConfig.compilerOptions.emitDecoratorMetadata).toBe(true);
-    expect(tsConfig.compilerOptions.target).toBe('es2015');
+    expect(tsConfig.compilerOptions.target).toBe('es2021');
     expect(tsConfig.exclude).toEqual([
       'jest.config.ts',
       'src/**/*.spec.ts',
diff --git a/packages/nest/src/generators/application/lib/update-tsconfig.ts b/packages/nest/src/generators/application/lib/update-tsconfig.ts
index 232f605f6b0486..0e93a25a8d77e9 100644
--- a/packages/nest/src/generators/application/lib/update-tsconfig.ts
+++ b/packages/nest/src/generators/application/lib/update-tsconfig.ts
@@ -8,7 +8,7 @@ export function updateTsConfig(tree: Tree, options: NormalizedOptions): void {
     joinPathFragments(options.appProjectRoot, 'tsconfig.app.json'),
     (json) => {
       json.compilerOptions.emitDecoratorMetadata = true;
-      json.compilerOptions.target = 'es2015';
+      json.compilerOptions.target = 'es2021';
       if (options.strict) {
         json.compilerOptions = {
           ...json.compilerOptions,
diff --git a/packages/nest/src/generators/library/library.spec.ts b/packages/nest/src/generators/library/library.spec.ts
index 08ca082f548c3a..08d9bd8d65f8a9 100644
--- a/packages/nest/src/generators/library/library.spec.ts
+++ b/packages/nest/src/generators/library/library.spec.ts
@@ -302,14 +302,14 @@ describe('lib', () => {
       expect(tsconfigJson.compilerOptions.target).toEqual('es6');
     });
 
-    it('should set target to es2020 in tsconfig.lib.json', async () => {
-      await libraryGenerator(tree, { name: libName, target: 'es2020' });
+    it('should set target to es2021 in tsconfig.lib.json', async () => {
+      await libraryGenerator(tree, { name: libName, target: 'es2021' });
 
       const tsconfigJson = readJson(
         tree,
         `libs/${libFileName}/tsconfig.lib.json`
       );
-      expect(tsconfigJson.compilerOptions.target).toEqual('es2020');
+      expect(tsconfigJson.compilerOptions.target).toEqual('es2021');
     });
   });
 
diff --git a/packages/nest/src/generators/library/schema.d.ts b/packages/nest/src/generators/library/schema.d.ts
index 82c4d1609665ad..85e076df98b261 100644
--- a/packages/nest/src/generators/library/schema.d.ts
+++ b/packages/nest/src/generators/library/schema.d.ts
@@ -24,7 +24,8 @@ export interface LibraryGeneratorOptions {
     | 'es2017'
     | 'es2018'
     | 'es2019'
-    | 'es2020';
+    | 'es2020'
+    | 'es2021';
   testEnvironment?: 'jsdom' | 'node';
   unitTestRunner?: UnitTestRunner;
   standaloneConfig?: boolean;
diff --git a/packages/nest/src/generators/library/schema.json b/packages/nest/src/generators/library/schema.json
index 33842e91879ff8..70b465046cf6e8 100644
--- a/packages/nest/src/generators/library/schema.json
+++ b/packages/nest/src/generators/library/schema.json
@@ -92,9 +92,9 @@
       "default": "node"
     },
     "target": {
-      "description": "The ES target, Nest suggest using es6 or higher.",
+      "description": "The ES target, Nest suggest using es2021 or higher.",
       "type": "string",
-      "default": "es6",
+      "default": "es2021",
       "enum": [
         "es5",
         "es6",
@@ -104,7 +104,8 @@
         "es2017",
         "es2018",
         "es2019",
-        "es2020"
+        "es2020",
+        "es2021"
       ]
     },
     "strict": {