diff --git a/apps/pipe-easy/.browserslistrc b/apps/pipe-easy/.browserslistrc
new file mode 100644
index 0000000..4f9ac26
--- /dev/null
+++ b/apps/pipe-easy/.browserslistrc
@@ -0,0 +1,16 @@
+# This file is used by the build system to adjust CSS and JS output to support the specified browsers below.
+# For additional information regarding the format and rule options, please see:
+# https://github.com/browserslist/browserslist#queries
+
+# For the full list of supported browsers by the Angular framework, please see:
+# https://angular.io/guide/browser-support
+
+# You can see what browsers were selected by your queries by running:
+# npx browserslist
+
+last 1 Chrome version
+last 1 Firefox version
+last 2 Edge major versions
+last 2 Safari major versions
+last 2 iOS major versions
+Firefox ESR
diff --git a/apps/pipe-easy/.eslintrc.json b/apps/pipe-easy/.eslintrc.json
new file mode 100644
index 0000000..028ce09
--- /dev/null
+++ b/apps/pipe-easy/.eslintrc.json
@@ -0,0 +1,36 @@
+{
+ "extends": ["../../.eslintrc.json"],
+ "ignorePatterns": ["!**/*"],
+ "overrides": [
+ {
+ "files": ["*.ts"],
+ "extends": [
+ "plugin:@nrwl/nx/angular",
+ "plugin:@angular-eslint/template/process-inline-templates"
+ ],
+ "rules": {
+ "@angular-eslint/directive-selector": [
+ "error",
+ {
+ "type": "attribute",
+ "prefix": "app",
+ "style": "camelCase"
+ }
+ ],
+ "@angular-eslint/component-selector": [
+ "error",
+ {
+ "type": "element",
+ "prefix": "app",
+ "style": "kebab-case"
+ }
+ ]
+ }
+ },
+ {
+ "files": ["*.html"],
+ "extends": ["plugin:@nrwl/nx/angular-template"],
+ "rules": {}
+ }
+ ]
+}
diff --git a/apps/pipe-easy/README.md b/apps/pipe-easy/README.md
new file mode 100644
index 0000000..ad41e8a
--- /dev/null
+++ b/apps/pipe-easy/README.md
@@ -0,0 +1,33 @@
+
Simple Pure pipe
+
+> Author: Thomas Laforge
+
+The goal of this serie of 3 pipe challenges is to master PIPES in Angular.
+
+Pure pipe are a very useful way to transform data from your template. The difference between calling a function and a pipe is that pure pire are memoized. So they won't be recalculated every change detection cycle if the inputs hasn't changed.
+
+### Information:
+
+In this first exercice, you add calling a simple function inside your template. The goal is to convert it to a pipe.
+
+### Constraints:
+
+- must be strongly typed
+
+### Submitting your work
+
+1. Fork the project
+2. clone it
+3. npm install
+4. **nx serve pipe-easy**
+5. _...work on it_
+6. Commit your work
+7. Submit a PR with a title beginning with **Answer:8** that I will review and other dev can review.
+
+
+
+
+
+
+_You can ask any question on_
diff --git a/apps/pipe-easy/project.json b/apps/pipe-easy/project.json
new file mode 100644
index 0000000..6deaccb
--- /dev/null
+++ b/apps/pipe-easy/project.json
@@ -0,0 +1,87 @@
+{
+ "name": "pipe-easy",
+ "$schema": "../../node_modules/nx/schemas/project-schema.json",
+ "projectType": "application",
+ "sourceRoot": "apps/pipe-easy/src",
+ "prefix": "app",
+ "targets": {
+ "build": {
+ "executor": "@angular-devkit/build-angular:browser",
+ "outputs": ["{options.outputPath}"],
+ "options": {
+ "outputPath": "dist/apps/pipe-easy",
+ "index": "apps/pipe-easy/src/index.html",
+ "main": "apps/pipe-easy/src/main.ts",
+ "polyfills": "apps/pipe-easy/src/polyfills.ts",
+ "tsConfig": "apps/pipe-easy/tsconfig.app.json",
+ "inlineStyleLanguage": "scss",
+ "assets": [
+ "apps/pipe-easy/src/favicon.ico",
+ "apps/pipe-easy/src/assets"
+ ],
+ "styles": ["apps/pipe-easy/src/styles.scss"],
+ "scripts": []
+ },
+ "configurations": {
+ "production": {
+ "budgets": [
+ {
+ "type": "initial",
+ "maximumWarning": "500kb",
+ "maximumError": "1mb"
+ },
+ {
+ "type": "anyComponentStyle",
+ "maximumWarning": "2kb",
+ "maximumError": "4kb"
+ }
+ ],
+ "fileReplacements": [
+ {
+ "replace": "apps/pipe-easy/src/environments/environment.ts",
+ "with": "apps/pipe-easy/src/environments/environment.prod.ts"
+ }
+ ],
+ "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": "pipe-easy:build:production"
+ },
+ "development": {
+ "browserTarget": "pipe-easy:build:development"
+ }
+ },
+ "defaultConfiguration": "development"
+ },
+ "extract-i18n": {
+ "executor": "@angular-devkit/build-angular:extract-i18n",
+ "options": {
+ "browserTarget": "pipe-easy:build"
+ }
+ },
+ "lint": {
+ "executor": "@nrwl/linter:eslint",
+ "options": {
+ "lintFilePatterns": [
+ "apps/pipe-easy/**/*.ts",
+ "apps/pipe-easy/**/*.html"
+ ]
+ }
+ }
+ },
+ "tags": []
+}
diff --git a/apps/pipe-easy/src/app/app.component.ts b/apps/pipe-easy/src/app/app.component.ts
new file mode 100644
index 0000000..3c19fa1
--- /dev/null
+++ b/apps/pipe-easy/src/app/app.component.ts
@@ -0,0 +1,21 @@
+import { NgFor } from '@angular/common';
+import { Component } from '@angular/core';
+
+@Component({
+ standalone: true,
+ imports: [NgFor],
+ selector: 'app-root',
+ template: `
+
+ {{ heavyComputation(person, index) }}
+
+ `,
+})
+export class AppComponent {
+ persons = ['toto', 'jack'];
+
+ heavyComputation(name: string, index: number) {
+ // very heavy computation
+ return `${name} - ${index}`;
+ }
+}
diff --git a/apps/pipe-easy/src/assets/.gitkeep b/apps/pipe-easy/src/assets/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/apps/pipe-easy/src/environments/environment.prod.ts b/apps/pipe-easy/src/environments/environment.prod.ts
new file mode 100644
index 0000000..c966979
--- /dev/null
+++ b/apps/pipe-easy/src/environments/environment.prod.ts
@@ -0,0 +1,3 @@
+export const environment = {
+ production: true,
+};
diff --git a/apps/pipe-easy/src/environments/environment.ts b/apps/pipe-easy/src/environments/environment.ts
new file mode 100644
index 0000000..66998ae
--- /dev/null
+++ b/apps/pipe-easy/src/environments/environment.ts
@@ -0,0 +1,16 @@
+// This file can be replaced during build by using the `fileReplacements` array.
+// `ng build` replaces `environment.ts` with `environment.prod.ts`.
+// The list of file replacements can be found in `angular.json`.
+
+export const environment = {
+ production: false,
+};
+
+/*
+ * For easier debugging in development mode, you can import the following file
+ * to ignore zone related error stack frames such as `zone.run`, `zoneDelegate.invokeTask`.
+ *
+ * This import should be commented out in production mode because it will have a negative impact
+ * on performance if an error is thrown.
+ */
+// import 'zone.js/plugins/zone-error'; // Included with Angular CLI.
diff --git a/apps/pipe-easy/src/favicon.ico b/apps/pipe-easy/src/favicon.ico
new file mode 100644
index 0000000..317ebcb
Binary files /dev/null and b/apps/pipe-easy/src/favicon.ico differ
diff --git a/apps/pipe-easy/src/index.html b/apps/pipe-easy/src/index.html
new file mode 100644
index 0000000..63b45d4
--- /dev/null
+++ b/apps/pipe-easy/src/index.html
@@ -0,0 +1,13 @@
+
+
+
+
+ PipeEasy
+
+
+
+
+
+
+
+
diff --git a/apps/pipe-easy/src/main.ts b/apps/pipe-easy/src/main.ts
new file mode 100644
index 0000000..07e97fe
--- /dev/null
+++ b/apps/pipe-easy/src/main.ts
@@ -0,0 +1,10 @@
+import { enableProdMode } from '@angular/core';
+import { bootstrapApplication } from '@angular/platform-browser';
+import { AppComponent } from './app/app.component';
+import { environment } from './environments/environment';
+
+if (environment.production) {
+ enableProdMode();
+}
+
+bootstrapApplication(AppComponent).catch((err) => console.error(err));
diff --git a/apps/pipe-easy/src/polyfills.ts b/apps/pipe-easy/src/polyfills.ts
new file mode 100644
index 0000000..e4555ed
--- /dev/null
+++ b/apps/pipe-easy/src/polyfills.ts
@@ -0,0 +1,52 @@
+/**
+ * This file includes polyfills needed by Angular and is loaded before the app.
+ * You can add your own extra polyfills to this file.
+ *
+ * This file is divided into 2 sections:
+ * 1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
+ * 2. Application imports. Files imported after ZoneJS that should be loaded before your main
+ * file.
+ *
+ * The current setup is for so-called "evergreen" browsers; the last versions of browsers that
+ * automatically update themselves. This includes recent versions of Safari, Chrome (including
+ * Opera), Edge on the desktop, and iOS and Chrome on mobile.
+ *
+ * Learn more in https://angular.io/guide/browser-support
+ */
+
+/***************************************************************************************************
+ * BROWSER POLYFILLS
+ */
+
+/**
+ * By default, zone.js will patch all possible macroTask and DomEvents
+ * user can disable parts of macroTask/DomEvents patch by setting following flags
+ * because those flags need to be set before `zone.js` being loaded, and webpack
+ * will put import in the top of bundle, so user need to create a separate file
+ * in this directory (for example: zone-flags.ts), and put the following flags
+ * into that file, and then add the following code before importing zone.js.
+ * import './zone-flags';
+ *
+ * The flags allowed in zone-flags.ts are listed here.
+ *
+ * The following flags will work for all browsers.
+ *
+ * (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame
+ * (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick
+ * (window as any).__zone_symbol__UNPATCHED_EVENTS = ['scroll', 'mousemove']; // disable patch specified eventNames
+ *
+ * in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js
+ * with the following flag, it will bypass `zone.js` patch for IE/Edge
+ *
+ * (window as any).__Zone_enable_cross_context_check = true;
+ *
+ */
+
+/***************************************************************************************************
+ * Zone JS is required by default for Angular itself.
+ */
+import 'zone.js'; // Included with Angular CLI.
+
+/***************************************************************************************************
+ * APPLICATION IMPORTS
+ */
diff --git a/apps/pipe-easy/src/styles.scss b/apps/pipe-easy/src/styles.scss
new file mode 100644
index 0000000..90d4ee0
--- /dev/null
+++ b/apps/pipe-easy/src/styles.scss
@@ -0,0 +1 @@
+/* You can add global styles to this file, and also import other style files */
diff --git a/apps/pipe-easy/tsconfig.app.json b/apps/pipe-easy/tsconfig.app.json
new file mode 100644
index 0000000..915ae8b
--- /dev/null
+++ b/apps/pipe-easy/tsconfig.app.json
@@ -0,0 +1,10 @@
+{
+ "extends": "./tsconfig.json",
+ "compilerOptions": {
+ "outDir": "../../dist/out-tsc",
+ "types": []
+ },
+ "files": ["src/main.ts", "src/polyfills.ts"],
+ "include": ["src/**/*.d.ts"],
+ "exclude": ["jest.config.ts", "**/*.test.ts", "**/*.spec.ts"]
+}
diff --git a/apps/pipe-easy/tsconfig.editor.json b/apps/pipe-easy/tsconfig.editor.json
new file mode 100644
index 0000000..0f9036b
--- /dev/null
+++ b/apps/pipe-easy/tsconfig.editor.json
@@ -0,0 +1,7 @@
+{
+ "extends": "./tsconfig.json",
+ "include": ["**/*.ts"],
+ "compilerOptions": {
+ "types": []
+ }
+}
diff --git a/apps/pipe-easy/tsconfig.json b/apps/pipe-easy/tsconfig.json
new file mode 100644
index 0000000..0b7a078
--- /dev/null
+++ b/apps/pipe-easy/tsconfig.json
@@ -0,0 +1,28 @@
+{
+ "extends": "../../tsconfig.base.json",
+ "files": [],
+ "include": [],
+ "references": [
+ {
+ "path": "./tsconfig.app.json"
+ },
+ {
+ "path": "./tsconfig.editor.json"
+ }
+ ],
+ "compilerOptions": {
+ "target": "es2020",
+ "forceConsistentCasingInFileNames": true,
+ "strict": true,
+ "noImplicitOverride": true,
+ "noPropertyAccessFromIndexSignature": true,
+ "noImplicitReturns": true,
+ "noFallthroughCasesInSwitch": true
+ },
+ "angularCompilerOptions": {
+ "enableI18nLegacyMessageIdFormat": false,
+ "strictInjectionParameters": true,
+ "strictInputAccessModifiers": true,
+ "strictTemplates": true
+ }
+}
diff --git a/apps/pipe-hard/.browserslistrc b/apps/pipe-hard/.browserslistrc
new file mode 100644
index 0000000..4f9ac26
--- /dev/null
+++ b/apps/pipe-hard/.browserslistrc
@@ -0,0 +1,16 @@
+# This file is used by the build system to adjust CSS and JS output to support the specified browsers below.
+# For additional information regarding the format and rule options, please see:
+# https://github.com/browserslist/browserslist#queries
+
+# For the full list of supported browsers by the Angular framework, please see:
+# https://angular.io/guide/browser-support
+
+# You can see what browsers were selected by your queries by running:
+# npx browserslist
+
+last 1 Chrome version
+last 1 Firefox version
+last 2 Edge major versions
+last 2 Safari major versions
+last 2 iOS major versions
+Firefox ESR
diff --git a/apps/pipe-hard/.eslintrc.json b/apps/pipe-hard/.eslintrc.json
new file mode 100644
index 0000000..028ce09
--- /dev/null
+++ b/apps/pipe-hard/.eslintrc.json
@@ -0,0 +1,36 @@
+{
+ "extends": ["../../.eslintrc.json"],
+ "ignorePatterns": ["!**/*"],
+ "overrides": [
+ {
+ "files": ["*.ts"],
+ "extends": [
+ "plugin:@nrwl/nx/angular",
+ "plugin:@angular-eslint/template/process-inline-templates"
+ ],
+ "rules": {
+ "@angular-eslint/directive-selector": [
+ "error",
+ {
+ "type": "attribute",
+ "prefix": "app",
+ "style": "camelCase"
+ }
+ ],
+ "@angular-eslint/component-selector": [
+ "error",
+ {
+ "type": "element",
+ "prefix": "app",
+ "style": "kebab-case"
+ }
+ ]
+ }
+ },
+ {
+ "files": ["*.html"],
+ "extends": ["plugin:@nrwl/nx/angular-template"],
+ "rules": {}
+ }
+ ]
+}
diff --git a/apps/pipe-hard/README.md b/apps/pipe-hard/README.md
new file mode 100644
index 0000000..3725666
--- /dev/null
+++ b/apps/pipe-hard/README.md
@@ -0,0 +1,33 @@
+
Strongly typed pipe
+
+> Author: Thomas Laforge
+
+The goal of this serie of 3 pipe challenges is to master PIPES in Angular.
+
+Pure pipe are a very useful way to transform data from your template. The difference between calling a function and a pipe is that pure pire are memoized. So they won't be recalculated every change detection cycle if the inputs hasn't changed.
+
+### Information:
+
+In this third exercice, you want to access utils functions. Currently we cannot access them directly from your template. The goal is to create a specific pipe for this utils file where you will need to pass the name of the function you want to call and the needed arguments.
+
+### Constraints:
+
+- must be strongly typed
+
+### Submitting your work
+
+1. Fork the project
+2. clone it
+3. npm install
+4. **nx serve pipe-hard**
+5. _...work on it_
+6. Commit your work
+7. Submit a PR with a title beginning with **Answer:10** that I will review and other dev can review.
+
+
+
+
+
+
+_You can ask any question on_
diff --git a/apps/pipe-hard/project.json b/apps/pipe-hard/project.json
new file mode 100644
index 0000000..4832f65
--- /dev/null
+++ b/apps/pipe-hard/project.json
@@ -0,0 +1,87 @@
+{
+ "name": "pipe-hard",
+ "$schema": "../../node_modules/nx/schemas/project-schema.json",
+ "projectType": "application",
+ "sourceRoot": "apps/pipe-hard/src",
+ "prefix": "app",
+ "targets": {
+ "build": {
+ "executor": "@angular-devkit/build-angular:browser",
+ "outputs": ["{options.outputPath}"],
+ "options": {
+ "outputPath": "dist/apps/pipe-hard",
+ "index": "apps/pipe-hard/src/index.html",
+ "main": "apps/pipe-hard/src/main.ts",
+ "polyfills": "apps/pipe-hard/src/polyfills.ts",
+ "tsConfig": "apps/pipe-hard/tsconfig.app.json",
+ "inlineStyleLanguage": "scss",
+ "assets": [
+ "apps/pipe-hard/src/favicon.ico",
+ "apps/pipe-hard/src/assets"
+ ],
+ "styles": ["apps/pipe-hard/src/styles.scss"],
+ "scripts": []
+ },
+ "configurations": {
+ "production": {
+ "budgets": [
+ {
+ "type": "initial",
+ "maximumWarning": "500kb",
+ "maximumError": "1mb"
+ },
+ {
+ "type": "anyComponentStyle",
+ "maximumWarning": "2kb",
+ "maximumError": "4kb"
+ }
+ ],
+ "fileReplacements": [
+ {
+ "replace": "apps/pipe-hard/src/environments/environment.ts",
+ "with": "apps/pipe-hard/src/environments/environment.prod.ts"
+ }
+ ],
+ "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": "pipe-hard:build:production"
+ },
+ "development": {
+ "browserTarget": "pipe-hard:build:development"
+ }
+ },
+ "defaultConfiguration": "development"
+ },
+ "extract-i18n": {
+ "executor": "@angular-devkit/build-angular:extract-i18n",
+ "options": {
+ "browserTarget": "pipe-hard:build"
+ }
+ },
+ "lint": {
+ "executor": "@nrwl/linter:eslint",
+ "options": {
+ "lintFilePatterns": [
+ "apps/pipe-hard/**/*.ts",
+ "apps/pipe-hard/**/*.html"
+ ]
+ }
+ }
+ },
+ "tags": []
+}
diff --git a/apps/pipe-hard/src/app/app.component.ts b/apps/pipe-hard/src/app/app.component.ts
new file mode 100644
index 0000000..d91fc74
--- /dev/null
+++ b/apps/pipe-hard/src/app/app.component.ts
@@ -0,0 +1,36 @@
+import { NgFor } from '@angular/common';
+import { Component } from '@angular/core';
+import { PersonUtils } from './person.utils';
+
+@Component({
+ standalone: true,
+ imports: [NgFor],
+ selector: 'app-root',
+ template: `
+
+ `,
+})
+export class AppComponent {
+ persons = [
+ { name: 'Toto', age: 10 },
+ { name: 'Jack', age: 15 },
+ { name: 'John', age: 30 },
+ ];
+
+ activities = [
+ { name: 'biking', minimumAge: 12 },
+ { name: 'hiking', minimumAge: 25 },
+ { name: 'dancing', minimumAge: 1 },
+ ];
+
+ showName = PersonUtils.showName;
+
+ isAllowed = PersonUtils.isAllowed;
+}
diff --git a/apps/pipe-hard/src/app/person.utils.ts b/apps/pipe-hard/src/app/person.utils.ts
new file mode 100644
index 0000000..66451da
--- /dev/null
+++ b/apps/pipe-hard/src/app/person.utils.ts
@@ -0,0 +1,17 @@
+const showName = (name: string, index: number) => {
+ // very heavy computation
+ return `${name} - ${index}`;
+};
+
+const isAllowed = (age: number, isFirst: boolean, activityAge: number) => {
+ if (isFirst) {
+ return 'always allowed';
+ } else {
+ return age > activityAge ? 'allowed' : 'declined';
+ }
+};
+
+export const PersonUtils = {
+ showName,
+ isAllowed,
+};
diff --git a/apps/pipe-hard/src/assets/.gitkeep b/apps/pipe-hard/src/assets/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/apps/pipe-hard/src/environments/environment.prod.ts b/apps/pipe-hard/src/environments/environment.prod.ts
new file mode 100644
index 0000000..c966979
--- /dev/null
+++ b/apps/pipe-hard/src/environments/environment.prod.ts
@@ -0,0 +1,3 @@
+export const environment = {
+ production: true,
+};
diff --git a/apps/pipe-hard/src/environments/environment.ts b/apps/pipe-hard/src/environments/environment.ts
new file mode 100644
index 0000000..66998ae
--- /dev/null
+++ b/apps/pipe-hard/src/environments/environment.ts
@@ -0,0 +1,16 @@
+// This file can be replaced during build by using the `fileReplacements` array.
+// `ng build` replaces `environment.ts` with `environment.prod.ts`.
+// The list of file replacements can be found in `angular.json`.
+
+export const environment = {
+ production: false,
+};
+
+/*
+ * For easier debugging in development mode, you can import the following file
+ * to ignore zone related error stack frames such as `zone.run`, `zoneDelegate.invokeTask`.
+ *
+ * This import should be commented out in production mode because it will have a negative impact
+ * on performance if an error is thrown.
+ */
+// import 'zone.js/plugins/zone-error'; // Included with Angular CLI.
diff --git a/apps/pipe-hard/src/favicon.ico b/apps/pipe-hard/src/favicon.ico
new file mode 100644
index 0000000..317ebcb
Binary files /dev/null and b/apps/pipe-hard/src/favicon.ico differ
diff --git a/apps/pipe-hard/src/index.html b/apps/pipe-hard/src/index.html
new file mode 100644
index 0000000..748c8e6
--- /dev/null
+++ b/apps/pipe-hard/src/index.html
@@ -0,0 +1,13 @@
+
+
+
+
+ PipeHard
+
+
+
+
+
+
+
+
diff --git a/apps/pipe-hard/src/main.ts b/apps/pipe-hard/src/main.ts
new file mode 100644
index 0000000..07e97fe
--- /dev/null
+++ b/apps/pipe-hard/src/main.ts
@@ -0,0 +1,10 @@
+import { enableProdMode } from '@angular/core';
+import { bootstrapApplication } from '@angular/platform-browser';
+import { AppComponent } from './app/app.component';
+import { environment } from './environments/environment';
+
+if (environment.production) {
+ enableProdMode();
+}
+
+bootstrapApplication(AppComponent).catch((err) => console.error(err));
diff --git a/apps/pipe-hard/src/polyfills.ts b/apps/pipe-hard/src/polyfills.ts
new file mode 100644
index 0000000..e4555ed
--- /dev/null
+++ b/apps/pipe-hard/src/polyfills.ts
@@ -0,0 +1,52 @@
+/**
+ * This file includes polyfills needed by Angular and is loaded before the app.
+ * You can add your own extra polyfills to this file.
+ *
+ * This file is divided into 2 sections:
+ * 1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
+ * 2. Application imports. Files imported after ZoneJS that should be loaded before your main
+ * file.
+ *
+ * The current setup is for so-called "evergreen" browsers; the last versions of browsers that
+ * automatically update themselves. This includes recent versions of Safari, Chrome (including
+ * Opera), Edge on the desktop, and iOS and Chrome on mobile.
+ *
+ * Learn more in https://angular.io/guide/browser-support
+ */
+
+/***************************************************************************************************
+ * BROWSER POLYFILLS
+ */
+
+/**
+ * By default, zone.js will patch all possible macroTask and DomEvents
+ * user can disable parts of macroTask/DomEvents patch by setting following flags
+ * because those flags need to be set before `zone.js` being loaded, and webpack
+ * will put import in the top of bundle, so user need to create a separate file
+ * in this directory (for example: zone-flags.ts), and put the following flags
+ * into that file, and then add the following code before importing zone.js.
+ * import './zone-flags';
+ *
+ * The flags allowed in zone-flags.ts are listed here.
+ *
+ * The following flags will work for all browsers.
+ *
+ * (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame
+ * (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick
+ * (window as any).__zone_symbol__UNPATCHED_EVENTS = ['scroll', 'mousemove']; // disable patch specified eventNames
+ *
+ * in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js
+ * with the following flag, it will bypass `zone.js` patch for IE/Edge
+ *
+ * (window as any).__Zone_enable_cross_context_check = true;
+ *
+ */
+
+/***************************************************************************************************
+ * Zone JS is required by default for Angular itself.
+ */
+import 'zone.js'; // Included with Angular CLI.
+
+/***************************************************************************************************
+ * APPLICATION IMPORTS
+ */
diff --git a/apps/pipe-hard/src/styles.scss b/apps/pipe-hard/src/styles.scss
new file mode 100644
index 0000000..90d4ee0
--- /dev/null
+++ b/apps/pipe-hard/src/styles.scss
@@ -0,0 +1 @@
+/* You can add global styles to this file, and also import other style files */
diff --git a/apps/pipe-hard/tsconfig.app.json b/apps/pipe-hard/tsconfig.app.json
new file mode 100644
index 0000000..915ae8b
--- /dev/null
+++ b/apps/pipe-hard/tsconfig.app.json
@@ -0,0 +1,10 @@
+{
+ "extends": "./tsconfig.json",
+ "compilerOptions": {
+ "outDir": "../../dist/out-tsc",
+ "types": []
+ },
+ "files": ["src/main.ts", "src/polyfills.ts"],
+ "include": ["src/**/*.d.ts"],
+ "exclude": ["jest.config.ts", "**/*.test.ts", "**/*.spec.ts"]
+}
diff --git a/apps/pipe-hard/tsconfig.editor.json b/apps/pipe-hard/tsconfig.editor.json
new file mode 100644
index 0000000..0f9036b
--- /dev/null
+++ b/apps/pipe-hard/tsconfig.editor.json
@@ -0,0 +1,7 @@
+{
+ "extends": "./tsconfig.json",
+ "include": ["**/*.ts"],
+ "compilerOptions": {
+ "types": []
+ }
+}
diff --git a/apps/pipe-hard/tsconfig.json b/apps/pipe-hard/tsconfig.json
new file mode 100644
index 0000000..0b7a078
--- /dev/null
+++ b/apps/pipe-hard/tsconfig.json
@@ -0,0 +1,28 @@
+{
+ "extends": "../../tsconfig.base.json",
+ "files": [],
+ "include": [],
+ "references": [
+ {
+ "path": "./tsconfig.app.json"
+ },
+ {
+ "path": "./tsconfig.editor.json"
+ }
+ ],
+ "compilerOptions": {
+ "target": "es2020",
+ "forceConsistentCasingInFileNames": true,
+ "strict": true,
+ "noImplicitOverride": true,
+ "noPropertyAccessFromIndexSignature": true,
+ "noImplicitReturns": true,
+ "noFallthroughCasesInSwitch": true
+ },
+ "angularCompilerOptions": {
+ "enableI18nLegacyMessageIdFormat": false,
+ "strictInjectionParameters": true,
+ "strictInputAccessModifiers": true,
+ "strictTemplates": true
+ }
+}
diff --git a/apps/pipe-intermediate/.browserslistrc b/apps/pipe-intermediate/.browserslistrc
new file mode 100644
index 0000000..4f9ac26
--- /dev/null
+++ b/apps/pipe-intermediate/.browserslistrc
@@ -0,0 +1,16 @@
+# This file is used by the build system to adjust CSS and JS output to support the specified browsers below.
+# For additional information regarding the format and rule options, please see:
+# https://github.com/browserslist/browserslist#queries
+
+# For the full list of supported browsers by the Angular framework, please see:
+# https://angular.io/guide/browser-support
+
+# You can see what browsers were selected by your queries by running:
+# npx browserslist
+
+last 1 Chrome version
+last 1 Firefox version
+last 2 Edge major versions
+last 2 Safari major versions
+last 2 iOS major versions
+Firefox ESR
diff --git a/apps/pipe-intermediate/.eslintrc.json b/apps/pipe-intermediate/.eslintrc.json
new file mode 100644
index 0000000..028ce09
--- /dev/null
+++ b/apps/pipe-intermediate/.eslintrc.json
@@ -0,0 +1,36 @@
+{
+ "extends": ["../../.eslintrc.json"],
+ "ignorePatterns": ["!**/*"],
+ "overrides": [
+ {
+ "files": ["*.ts"],
+ "extends": [
+ "plugin:@nrwl/nx/angular",
+ "plugin:@angular-eslint/template/process-inline-templates"
+ ],
+ "rules": {
+ "@angular-eslint/directive-selector": [
+ "error",
+ {
+ "type": "attribute",
+ "prefix": "app",
+ "style": "camelCase"
+ }
+ ],
+ "@angular-eslint/component-selector": [
+ "error",
+ {
+ "type": "element",
+ "prefix": "app",
+ "style": "kebab-case"
+ }
+ ]
+ }
+ },
+ {
+ "files": ["*.html"],
+ "extends": ["plugin:@nrwl/nx/angular-template"],
+ "rules": {}
+ }
+ ]
+}
diff --git a/apps/pipe-intermediate/README.md b/apps/pipe-intermediate/README.md
new file mode 100644
index 0000000..b0051ad
--- /dev/null
+++ b/apps/pipe-intermediate/README.md
@@ -0,0 +1,34 @@
+
WrapFn pipe
+
+> Author: Thomas Laforge
+
+The goal of this serie of 3 pipe challenges is to master PIPES in Angular.
+
+Pure pipe are a very useful way to transform data from your template. The difference between calling a function and a pipe is that pure pire are memoized. So they won't be recalculated every change detection cycle if the inputs hasn't changed.
+
+### Information:
+
+In this second exercice, you add calling multiple functions inside your template. You can create a pipe for each of this function but this will be a bit too much to create that much specific pipe.
+The goal is to create a wrapFn pipe to wrap your function calls though a pipe.
+
+### Constraints:
+
+- must be strongly typed
+
+### Submitting your work
+
+1. Fork the project
+2. clone it
+3. npm install
+4. **nx serve pipe-intermediate**
+5. _...work on it_
+6. Commit your work
+7. Submit a PR with a title beginning with **Answer:9** that I will review and other dev can review.
+
+
+
+
+
+
+_You can ask any question on_
diff --git a/apps/pipe-intermediate/project.json b/apps/pipe-intermediate/project.json
new file mode 100644
index 0000000..758c714
--- /dev/null
+++ b/apps/pipe-intermediate/project.json
@@ -0,0 +1,87 @@
+{
+ "name": "pipe-intermediate",
+ "$schema": "../../node_modules/nx/schemas/project-schema.json",
+ "projectType": "application",
+ "sourceRoot": "apps/pipe-intermediate/src",
+ "prefix": "app",
+ "targets": {
+ "build": {
+ "executor": "@angular-devkit/build-angular:browser",
+ "outputs": ["{options.outputPath}"],
+ "options": {
+ "outputPath": "dist/apps/pipe-intermediate",
+ "index": "apps/pipe-intermediate/src/index.html",
+ "main": "apps/pipe-intermediate/src/main.ts",
+ "polyfills": "apps/pipe-intermediate/src/polyfills.ts",
+ "tsConfig": "apps/pipe-intermediate/tsconfig.app.json",
+ "inlineStyleLanguage": "scss",
+ "assets": [
+ "apps/pipe-intermediate/src/favicon.ico",
+ "apps/pipe-intermediate/src/assets"
+ ],
+ "styles": ["apps/pipe-intermediate/src/styles.scss"],
+ "scripts": []
+ },
+ "configurations": {
+ "production": {
+ "budgets": [
+ {
+ "type": "initial",
+ "maximumWarning": "500kb",
+ "maximumError": "1mb"
+ },
+ {
+ "type": "anyComponentStyle",
+ "maximumWarning": "2kb",
+ "maximumError": "4kb"
+ }
+ ],
+ "fileReplacements": [
+ {
+ "replace": "apps/pipe-intermediate/src/environments/environment.ts",
+ "with": "apps/pipe-intermediate/src/environments/environment.prod.ts"
+ }
+ ],
+ "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": "pipe-intermediate:build:production"
+ },
+ "development": {
+ "browserTarget": "pipe-intermediate:build:development"
+ }
+ },
+ "defaultConfiguration": "development"
+ },
+ "extract-i18n": {
+ "executor": "@angular-devkit/build-angular:extract-i18n",
+ "options": {
+ "browserTarget": "pipe-intermediate:build"
+ }
+ },
+ "lint": {
+ "executor": "@nrwl/linter:eslint",
+ "options": {
+ "lintFilePatterns": [
+ "apps/pipe-intermediate/**/*.ts",
+ "apps/pipe-intermediate/**/*.html"
+ ]
+ }
+ }
+ },
+ "tags": []
+}
diff --git a/apps/pipe-intermediate/src/app/app.component.ts b/apps/pipe-intermediate/src/app/app.component.ts
new file mode 100644
index 0000000..d9c163c
--- /dev/null
+++ b/apps/pipe-intermediate/src/app/app.component.ts
@@ -0,0 +1,34 @@
+import { NgFor } from '@angular/common';
+import { Component } from '@angular/core';
+
+@Component({
+ standalone: true,
+ imports: [NgFor],
+ selector: 'app-root',
+ template: `
+
+ `,
+})
+export class AppComponent {
+ persons = [
+ { name: 'Toto', age: 10 },
+ { name: 'Jack', age: 15 },
+ { name: 'John', age: 30 },
+ ];
+
+ showName(name: string, index: number) {
+ // very heavy computation
+ return `${name} - ${index}`;
+ }
+
+ isAllowed(age: number, isFirst: boolean) {
+ if (isFirst) {
+ return 'always allowed';
+ } else {
+ return age > 25 ? 'allowed' : 'declined';
+ }
+ }
+}
diff --git a/apps/pipe-intermediate/src/assets/.gitkeep b/apps/pipe-intermediate/src/assets/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/apps/pipe-intermediate/src/environments/environment.prod.ts b/apps/pipe-intermediate/src/environments/environment.prod.ts
new file mode 100644
index 0000000..c966979
--- /dev/null
+++ b/apps/pipe-intermediate/src/environments/environment.prod.ts
@@ -0,0 +1,3 @@
+export const environment = {
+ production: true,
+};
diff --git a/apps/pipe-intermediate/src/environments/environment.ts b/apps/pipe-intermediate/src/environments/environment.ts
new file mode 100644
index 0000000..66998ae
--- /dev/null
+++ b/apps/pipe-intermediate/src/environments/environment.ts
@@ -0,0 +1,16 @@
+// This file can be replaced during build by using the `fileReplacements` array.
+// `ng build` replaces `environment.ts` with `environment.prod.ts`.
+// The list of file replacements can be found in `angular.json`.
+
+export const environment = {
+ production: false,
+};
+
+/*
+ * For easier debugging in development mode, you can import the following file
+ * to ignore zone related error stack frames such as `zone.run`, `zoneDelegate.invokeTask`.
+ *
+ * This import should be commented out in production mode because it will have a negative impact
+ * on performance if an error is thrown.
+ */
+// import 'zone.js/plugins/zone-error'; // Included with Angular CLI.
diff --git a/apps/pipe-intermediate/src/favicon.ico b/apps/pipe-intermediate/src/favicon.ico
new file mode 100644
index 0000000..317ebcb
Binary files /dev/null and b/apps/pipe-intermediate/src/favicon.ico differ
diff --git a/apps/pipe-intermediate/src/index.html b/apps/pipe-intermediate/src/index.html
new file mode 100644
index 0000000..07ccccc
--- /dev/null
+++ b/apps/pipe-intermediate/src/index.html
@@ -0,0 +1,13 @@
+
+
+
+
+ PipeIntermediate
+
+
+
+
+
+
+
+
diff --git a/apps/pipe-intermediate/src/main.ts b/apps/pipe-intermediate/src/main.ts
new file mode 100644
index 0000000..07e97fe
--- /dev/null
+++ b/apps/pipe-intermediate/src/main.ts
@@ -0,0 +1,10 @@
+import { enableProdMode } from '@angular/core';
+import { bootstrapApplication } from '@angular/platform-browser';
+import { AppComponent } from './app/app.component';
+import { environment } from './environments/environment';
+
+if (environment.production) {
+ enableProdMode();
+}
+
+bootstrapApplication(AppComponent).catch((err) => console.error(err));
diff --git a/apps/pipe-intermediate/src/polyfills.ts b/apps/pipe-intermediate/src/polyfills.ts
new file mode 100644
index 0000000..e4555ed
--- /dev/null
+++ b/apps/pipe-intermediate/src/polyfills.ts
@@ -0,0 +1,52 @@
+/**
+ * This file includes polyfills needed by Angular and is loaded before the app.
+ * You can add your own extra polyfills to this file.
+ *
+ * This file is divided into 2 sections:
+ * 1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
+ * 2. Application imports. Files imported after ZoneJS that should be loaded before your main
+ * file.
+ *
+ * The current setup is for so-called "evergreen" browsers; the last versions of browsers that
+ * automatically update themselves. This includes recent versions of Safari, Chrome (including
+ * Opera), Edge on the desktop, and iOS and Chrome on mobile.
+ *
+ * Learn more in https://angular.io/guide/browser-support
+ */
+
+/***************************************************************************************************
+ * BROWSER POLYFILLS
+ */
+
+/**
+ * By default, zone.js will patch all possible macroTask and DomEvents
+ * user can disable parts of macroTask/DomEvents patch by setting following flags
+ * because those flags need to be set before `zone.js` being loaded, and webpack
+ * will put import in the top of bundle, so user need to create a separate file
+ * in this directory (for example: zone-flags.ts), and put the following flags
+ * into that file, and then add the following code before importing zone.js.
+ * import './zone-flags';
+ *
+ * The flags allowed in zone-flags.ts are listed here.
+ *
+ * The following flags will work for all browsers.
+ *
+ * (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame
+ * (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick
+ * (window as any).__zone_symbol__UNPATCHED_EVENTS = ['scroll', 'mousemove']; // disable patch specified eventNames
+ *
+ * in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js
+ * with the following flag, it will bypass `zone.js` patch for IE/Edge
+ *
+ * (window as any).__Zone_enable_cross_context_check = true;
+ *
+ */
+
+/***************************************************************************************************
+ * Zone JS is required by default for Angular itself.
+ */
+import 'zone.js'; // Included with Angular CLI.
+
+/***************************************************************************************************
+ * APPLICATION IMPORTS
+ */
diff --git a/apps/pipe-intermediate/src/styles.scss b/apps/pipe-intermediate/src/styles.scss
new file mode 100644
index 0000000..90d4ee0
--- /dev/null
+++ b/apps/pipe-intermediate/src/styles.scss
@@ -0,0 +1 @@
+/* You can add global styles to this file, and also import other style files */
diff --git a/apps/pipe-intermediate/tsconfig.app.json b/apps/pipe-intermediate/tsconfig.app.json
new file mode 100644
index 0000000..915ae8b
--- /dev/null
+++ b/apps/pipe-intermediate/tsconfig.app.json
@@ -0,0 +1,10 @@
+{
+ "extends": "./tsconfig.json",
+ "compilerOptions": {
+ "outDir": "../../dist/out-tsc",
+ "types": []
+ },
+ "files": ["src/main.ts", "src/polyfills.ts"],
+ "include": ["src/**/*.d.ts"],
+ "exclude": ["jest.config.ts", "**/*.test.ts", "**/*.spec.ts"]
+}
diff --git a/apps/pipe-intermediate/tsconfig.editor.json b/apps/pipe-intermediate/tsconfig.editor.json
new file mode 100644
index 0000000..0f9036b
--- /dev/null
+++ b/apps/pipe-intermediate/tsconfig.editor.json
@@ -0,0 +1,7 @@
+{
+ "extends": "./tsconfig.json",
+ "include": ["**/*.ts"],
+ "compilerOptions": {
+ "types": []
+ }
+}
diff --git a/apps/pipe-intermediate/tsconfig.json b/apps/pipe-intermediate/tsconfig.json
new file mode 100644
index 0000000..0b7a078
--- /dev/null
+++ b/apps/pipe-intermediate/tsconfig.json
@@ -0,0 +1,28 @@
+{
+ "extends": "../../tsconfig.base.json",
+ "files": [],
+ "include": [],
+ "references": [
+ {
+ "path": "./tsconfig.app.json"
+ },
+ {
+ "path": "./tsconfig.editor.json"
+ }
+ ],
+ "compilerOptions": {
+ "target": "es2020",
+ "forceConsistentCasingInFileNames": true,
+ "strict": true,
+ "noImplicitOverride": true,
+ "noPropertyAccessFromIndexSignature": true,
+ "noImplicitReturns": true,
+ "noFallthroughCasesInSwitch": true
+ },
+ "angularCompilerOptions": {
+ "enableI18nLegacyMessageIdFormat": false,
+ "strictInjectionParameters": true,
+ "strictInputAccessModifiers": true,
+ "strictTemplates": true
+ }
+}