feat(doc): move catcherrro

apps/rxjs/catch-error/.eslintrc.json

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

apps/rxjs/catch-error/README.md

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+# catchError
+
+> Author: Devesh Chaudhari
+
+### Run Application
+
+```bash
+npx nx serve rxjs-catch-error
+```
+
+### Documentation and Instruction
+
+Challenge documentation is [here](https://angular-challenges.vercel.app/challenges/rxjs/38-catch-error/).

apps/rxjs/catch-error/jest.config.ts

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+/* eslint-disable */
+export default {
+  displayName: 'rxjs-catch-error',
+  preset: '../../../jest.preset.js',
+  setupFilesAfterEnv: ['<rootDir>/src/test-setup.ts'],
+  coverageDirectory: '../../../coverage/apps/rxjs/catch-error',
+  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',
+  ],
+};

apps/rxjs/catch-error/project.json

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+{
+  "name": "rxjs-catch-error",
+  "$schema": "../../../node_modules/nx/schemas/project-schema.json",
+  "projectType": "application",
+  "prefix": "app",
+  "sourceRoot": "apps/rxjs/catch-error/src",
+  "tags": [],
+  "targets": {
+    "build": {
+      "executor": "@angular-devkit/build-angular:browser",
+      "outputs": ["{options.outputPath}"],
+      "options": {
+        "outputPath": "dist/apps/rxjs/catch-error",
+        "index": "apps/rxjs/catch-error/src/index.html",
+        "main": "apps/rxjs/catch-error/src/main.ts",
+        "polyfills": ["zone.js"],
+        "tsConfig": "apps/rxjs/catch-error/tsconfig.app.json",
+        "assets": [
+          "apps/rxjs/catch-error/src/favicon.ico",
+          "apps/rxjs/catch-error/src/assets"
+        ],
+        "styles": ["apps/rxjs/catch-error/src/styles.scss"],
+        "scripts": []
+      },
+      "configurations": {
+        "production": {
+          "budgets": [
+            {
+              "type": "initial",
+              "maximumWarning": "500kb",
+              "maximumError": "1mb"
+            },
+            {
+              "type": "anyComponentStyle",
+              "maximumWarning": "2kb",
+              "maximumError": "4kb"
+            }
+          ],
+          "outputHashing": "all"
+        },
+        "development": {
+          "buildOptimizer": false,
+          "optimization": false,
+          "vendorChunk": true,
+          "extractLicenses": false,
+          "sourceMap": true,
+          "namedChunks": true
+        }
+      },
+      "defaultConfiguration": "production"
+    },
+    "serve": {
+      "executor": "@angular-devkit/build-angular:dev-server",
+      "configurations": {
+        "production": {
+          "browserTarget": "rxjs-catch-error:build:production"
+        },
+        "development": {
+          "browserTarget": "rxjs-catch-error:build:development"
+        }
+      },
+      "defaultConfiguration": "development"
+    },
+    "extract-i18n": {
+      "executor": "@angular-devkit/build-angular:extract-i18n",
+      "options": {
+        "browserTarget": "rxjs-catch-error:build"
+      }
+    },
+    "lint": {
+      "executor": "@nx/linter:eslint",
+      "outputs": ["{options.outputFile}"],
+      "options": {
+        "lintFilePatterns": [
+          "apps/rxjs/catch-error/**/*.ts",
+          "apps/rxjs/catch-error/**/*.html"
+        ]
+      }
+    },
+    "test": {
+      "executor": "@nx/jest:jest",
+      "outputs": ["{workspaceRoot}/coverage/{projectRoot}"],
+      "options": {
+        "jestConfig": "apps/rxjs/catch-error/jest.config.ts",
+        "passWithNoTests": true
+      },
+      "configurations": {
+        "ci": {
+          "ci": true,
+          "codeCoverage": true
+        }
+      }
+    }
+  }
+}

apps/rxjs/catch-error/src/app/app.component.css

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+body {
+  font-family: Arial, sans-serif;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  height: 100vh;
+  margin: 0;
+}
+.form-container {
+  text-align: center;
+}
+input {
+  padding: 8px;
+  margin-right: 8px;
+  border: 1px solid #ccc;
+  border-radius: 4px;
+}
+button {
+  padding: 8px 16px;
+  background-color: #007bff;
+  color: #fff;
+  border: none;
+  border-radius: 4px;
+  cursor: pointer;
+}
+.response {
+  margin-left: 25%;
+  margin-top: 2%;
+  width: 50%;
+  text-align: center;
+  border: 1px solid #ccc;
+}

apps/rxjs/catch-error/src/app/app.component.spec.ts

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+import { render } from '@testing-library/angular';
+import { AppComponent } from './app.component';
+
+describe('AppComponent', () => {
+  test('...', async () => {
+    await render(AppComponent);
+  });
+});

apps/rxjs/catch-error/src/app/app.component.ts

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+import { Component, DestroyRef, inject } from '@angular/core';
+import { CommonModule } from '@angular/common';
+import { HttpClient } from '@angular/common/http';
+import { FormsModule } from '@angular/forms';
+import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
+import { Subject, concatMap, map } from 'rxjs';
+
+@Component({
+  standalone: true,
+  imports: [CommonModule, FormsModule],
+  selector: 'app-root',
+  template: `
+    <div class="form-container">
+      <span
+        >possible values: posts, comments, albums, photos, todos, users</span
+      >
+    </div>
+    <form class="form-container" (ngSubmit)="submit$$.next()">
+      <input
+        type="text"
+        placeholder="Enter text"
+        [(ngModel)]="input"
+        name="action" />
+      <button>Fetch</button>
+    </form>
+    <div class="response">
+      {{ response | json }}
+    </div>
+  `,
+  styleUrls: ['./app.component.css'],
+})
+export class AppComponent {
+  submit$$ = new Subject<void>();
+  input = '';
+  response: unknown;
+  private destroyRef = inject(DestroyRef);
+  constructor(private http: HttpClient) {}
+  ngOnInit() {
+    this.submit$$
+      .pipe(
+        map(() => this.input),
+        concatMap((value) =>
+          this.http.get(`https://jsonplaceholder.typicode.com/${value}/1`)
+        ),
+        takeUntilDestroyed(this.destroyRef)
+      )
+      .subscribe({
+        next: (value) => {
+          console.log(value);
+          this.response = value;
+        },
+        error: (error) => {
+          console.log(error);
+          this.response = error;
+        },
+        complete: () => console.log('done'),
+      });
+  }
+}

apps/rxjs/catch-error/src/app/app.config.ts

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+import { ApplicationConfig, importProvidersFrom } from '@angular/core';
+import { HttpClientModule } from '@angular/common/http';
+
+export const appConfig: ApplicationConfig = {
+  providers: [importProvidersFrom(HttpClientModule)],
+};

apps/rxjs/catch-error/src/index.html

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+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <title>rxjs-catch-error</title>
+    <base href="/" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <link rel="icon" type="image/x-icon" href="favicon.ico" />
+  </head>
+  <body>
+    <app-root></app-root>
+  </body>
+</html>

apps/rxjs/catch-error/src/main.ts

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+import { bootstrapApplication } from '@angular/platform-browser';
+import { appConfig } from './app/app.config';
+import { AppComponent } from './app/app.component';
+
+bootstrapApplication(AppComponent, appConfig).catch((err) =>
+  console.error(err)
+);

apps/rxjs/catch-error/src/styles.scss

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+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+/* You can add global styles to this file, and also import other style files */

apps/rxjs/catch-error/src/test-setup.ts

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+import '@testing-library/jest-dom';
+import 'jest-preset-angular/setup-jest';

apps/rxjs/catch-error/tailwind.config.js

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+const { createGlobPatternsForDependencies } = require('@nx/angular/tailwind');
+const { join } = require('path');
+
+/** @type {import('tailwindcss').Config} */
+module.exports = {
+  content: [
+    join(__dirname, 'src/**/!(*.stories|*.spec).{ts,html}'),
+    ...createGlobPatternsForDependencies(__dirname),
+  ],
+  theme: {
+    extend: {},
+  },
+  plugins: [],
+};

apps/rxjs/catch-error/tsconfig.app.json

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+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../../dist/out-tsc",
+    "types": []
+  },
+  "files": ["src/main.ts"],
+  "include": ["src/**/*.d.ts"],
+  "exclude": ["jest.config.ts", "src/**/*.test.ts", "src/**/*.spec.ts"]
+}

apps/rxjs/catch-error/tsconfig.editor.json

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+{
+  "extends": "./tsconfig.json",
+  "include": ["src/**/*.ts"],
+  "compilerOptions": {
+    "types": ["jest", "node"]
+  }
+}

apps/rxjs/catch-error/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.app.json"
+    },
+    {
+      "path": "./tsconfig.spec.json"
+    },
+    {
+      "path": "./tsconfig.editor.json"
+    }
+  ],
+  "extends": "../../../tsconfig.base.json",
+  "angularCompilerOptions": {
+    "enableI18nLegacyMessageIdFormat": false,
+    "strictInjectionParameters": true,
+    "strictInputAccessModifiers": true,
+    "strictTemplates": true
+  }
+}

apps/rxjs/catch-error/tsconfig.spec.json

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