feat(challenge33): about performance

libs/shared/directives/.eslintrc.json

@@ -0,0 +1,36 @@
+{
+  "extends": ["../../../.eslintrc.json"],
+  "ignorePatterns": ["!**/*"],
+  "overrides": [
+    {
+      "files": ["*.ts"],
+      "rules": {
+        "@angular-eslint/directive-selector": [
+          "error",
+          {
+            "type": "attribute",
+            "prefix": "lib",
+            "style": "camelCase"
+          }
+        ],
+        "@angular-eslint/component-selector": [
+          "error",
+          {
+            "type": "element",
+            "prefix": "lib",
+            "style": "kebab-case"
+          }
+        ]
+      },
+      "extends": [
+        "plugin:@nx/angular",
+        "plugin:@angular-eslint/template/process-inline-templates"
+      ]
+    },
+    {
+      "files": ["*.html"],
+      "extends": ["plugin:@nx/angular-template"],
+      "rules": {}
+    }
+  ]
+}

libs/shared/directives/README.md

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+# shared-directives
+
+This library was generated with [Nx](https://nx.dev).
+
+## Running unit tests
+
+Run `nx test shared-directives` to execute the unit tests.

libs/shared/directives/jest.config.ts

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+/* eslint-disable */
+export default {
+  displayName: 'shared-directives',
+  preset: '../../../jest.preset.js',
+  setupFilesAfterEnv: ['<rootDir>/src/test-setup.ts'],
+  coverageDirectory: '../../../coverage/libs/shared/directives',
+  transform: {
+    '^.+\\.(ts|mjs|js|html)$': [
+      'jest-preset-angular',
+      {
+        tsconfig: '<rootDir>/tsconfig.spec.json',
+        stringifyContentPathRegex: '\\.(html|svg)$',
+      },
+    ],
+  },
+  transformIgnorePatterns: ['node_modules/(?!.*\\.mjs$)'],
+  snapshotSerializers: [
+    'jest-preset-angular/build/serializers/no-ng-attributes',
+    'jest-preset-angular/build/serializers/ng-snapshot',
+    'jest-preset-angular/build/serializers/html-comment',
+  ],
+};

libs/shared/directives/ng-package.json

@@ -0,0 +1,7 @@
+{
+  "$schema": "../../../node_modules/ng-packagr/ng-package.schema.json",
+  "dest": "../../../dist/libs/shared/directives",
+  "lib": {
+    "entryFile": "src/index.ts"
+  }
+}

libs/shared/directives/package.json

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+{
+  "name": "@angular-challenges/shared/directives",
+  "version": "0.0.1",
+  "peerDependencies": {
+    "@angular/common": "^16.1.0",
+    "@angular/core": "^16.1.0"
+  },
+  "dependencies": {
+    "tslib": "^2.3.0"
+  },
+  "sideEffects": false
+}

libs/shared/directives/project.json

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+{
+  "name": "shared-directives",
+  "$schema": "../../../node_modules/nx/schemas/project-schema.json",
+  "sourceRoot": "libs/shared/directives/src",
+  "prefix": "lib",
+  "tags": [],
+  "projectType": "library",
+  "targets": {
+    "build": {
+      "executor": "@nx/angular:ng-packagr-lite",
+      "outputs": ["{workspaceRoot}/dist/{projectRoot}"],
+      "options": {
+        "project": "libs/shared/directives/ng-package.json"
+      },
+      "configurations": {
+        "production": {
+          "tsConfig": "libs/shared/directives/tsconfig.lib.prod.json"
+        },
+        "development": {
+          "tsConfig": "libs/shared/directives/tsconfig.lib.json"
+        }
+      },
+      "defaultConfiguration": "production"
+    },
+    "test": {
+      "executor": "@nx/jest:jest",
+      "outputs": ["{workspaceRoot}/coverage/{projectRoot}"],
+      "options": {
+        "jestConfig": "libs/shared/directives/jest.config.ts",
+        "passWithNoTests": true
+      },
+      "configurations": {
+        "ci": {
+          "ci": true,
+          "codeCoverage": true
+        }
+      }
+    },
+    "lint": {
+      "executor": "@nx/linter:eslint",
+      "outputs": ["{options.outputFile}"],
+      "options": {
+        "lintFilePatterns": [
+          "libs/shared/directives/**/*.ts",
+          "libs/shared/directives/**/*.html"
+        ]
+      }
+    }
+  }
+}

libs/shared/directives/src/index.ts

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+export * from './lib/cd-flashing.directive';

libs/shared/directives/src/lib/cd-flashing.directive.ts

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+/* eslint-disable @angular-eslint/directive-selector */
+import { Directive, DoCheck, ElementRef, NgZone } from '@angular/core';
+
+@Directive({
+  selector: '[cd-flash]',
+  standalone: true,
+})
+export class CDFlashingDirective implements DoCheck {
+  constructor(private elementRef: ElementRef, private zone: NgZone) {}
+
+  ngDoCheck(): void {
+    this.cdRan();
+  }
+
+  public cdRan(): void {
+    this.zone.runOutsideAngular(() => {
+      this.elementRef.nativeElement.classList.add('!bg-orange-500');
+      setTimeout(() => {
+        this.elementRef.nativeElement.classList.remove('!bg-orange-500');
+      }, 1000);
+    });
+  }
+}

libs/shared/directives/src/test-setup.ts

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+// @ts-expect-error https://thymikee.github.io/jest-preset-angular/docs/getting-started/test-environment
+globalThis.ngJest = {
+  testEnvironmentOptions: {
+    errorOnUnknownElements: true,
+    errorOnUnknownProperties: true,
+  },
+};
+import 'jest-preset-angular/setup-jest';

libs/shared/directives/tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "es2022",
+    "useDefineForClassFields": false,
+    "forceConsistentCasingInFileNames": true,
+    "strict": true,
+    "noImplicitOverride": true,
+    "noPropertyAccessFromIndexSignature": true,
+    "noImplicitReturns": true,
+    "noFallthroughCasesInSwitch": true
+  },
+  "files": [],
+  "include": [],
+  "references": [
+    {
+      "path": "./tsconfig.lib.json"
+    },
+    {
+      "path": "./tsconfig.spec.json"
+    }
+  ],
+  "extends": "../../../tsconfig.base.json",
+  "angularCompilerOptions": {
+    "enableI18nLegacyMessageIdFormat": false,
+    "strictInjectionParameters": true,
+    "strictInputAccessModifiers": true,
+    "strictTemplates": true
+  }
+}

libs/shared/directives/tsconfig.lib.json

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+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../../dist/out-tsc",
+    "declaration": true,
+    "declarationMap": true,
+    "inlineSources": true,
+    "types": []
+  },
+  "exclude": [
+    "src/**/*.spec.ts",
+    "src/test-setup.ts",
+    "jest.config.ts",
+    "src/**/*.test.ts"
+  ],
+  "include": ["src/**/*.ts"]
+}

libs/shared/directives/tsconfig.lib.prod.json

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+{
+  "extends": "./tsconfig.lib.json",
+  "compilerOptions": {
+    "declarationMap": false
+  },
+  "angularCompilerOptions": {}
+}

libs/shared/directives/tsconfig.spec.json

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+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../../dist/out-tsc",
+    "module": "commonjs",
+    "target": "es2016",
+    "types": ["jest", "node"]
+  },
+  "files": ["src/test-setup.ts"],
+  "include": [
+    "jest.config.ts",
+    "src/**/*.test.ts",
+    "src/**/*.spec.ts",
+    "src/**/*.d.ts"
+  ]
+}