How do I set up development environment?

## Prerequisites - Basic HTML, CSS, JavaScript knowledge. - Command-line familiarity. 1. Install **Node.js** LTS (v20+ recommended) from [nodejs.org](https://nodejs.org). 2. Verify: `node --version` and `npm --version`. 3. Install Angular CLI: `npm install -g @angular/cli`. 4. Install **VS Code** from [code.visualstudio.com](https://code.visualstudio.com) and add **Angular Language Service** extension. 5. Verify CLI: `ng version` (should show Angular CLI ~21.x).

How do I create and run your first app?

1. Create app: `ng new my-first-app --standalone --routing=false --style=css`. 2. Navigate: `cd my-first-app`. 3. Serve: `ng serve`. 4. Open [http://localhost:4200](http://localhost:4200). 5. Explore structure: - `src/app/app.component.ts/html`: Root component. - `main.ts`: Bootstrap. Edit `app.component.ts` to change title, save to see live reload.

How do I master components and data binding?

## Key Concepts: Standalone Components, Signals 1. Generate component: `ng generate component house-list`. 2. In `house-list.component.ts`: ```typescript import { Component, signal } from '@angular/core'; @Component({...}) export class HouseListComponent { houses = signal(['House 1', 'House 2']); } ``` 3. Update `app.component.html`: ```html {{title}} ``` 4. Bind data: Use `{{ houses() }}` and `@for` loop. Follow [official first app tutorial](https://angular.dev/tutorials/first-app).

How do I add services, routing, and forms?

1. Generate service: `ng g service house`. 2. Inject in component: Use `inject(HouseService)`. 3. Enable routing: `ng new` with --routing or `ng g route home`. 4. Forms: Use `signal` forms or `FormControl`. 5. HTTP: `ng add @angular/common` wait no, import HttpClientModule. Example service: ```typescript houses = signal ([]); ``` Explore [angular.dev/guide](https://angular.dev/guide).

How do I build, test, and deploy project?

1. Add tests: `ng g component todo --spec`. 2. Run tests: `ng test`. 3. Build: `ng build` (dist/ folder). 4. Deploy: Use GitHub Pages, Netlify, or Vercel. - `ng build --base-href /my-app/`. 5. Follow official [roadmap](https://angular.dev/roadmap) for next features. Push to GitHub: `git init`, `git add .`, `git commit -m 'first app'`, create repo.

Learn Angular v21: Build Apps in 5 Steps

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Step-by-Step Guide

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Prerequisites

Basic HTML, CSS, JavaScript knowledge.
Command-line familiarity.

Install Node.js LTS (v20+ recommended) from nodejs.org.
Verify: node --version and npm --version.
Install Angular CLI: npm install -g @angular/cli.
Install VS Code from code.visualstudio.com and add Angular Language Service extension.
Verify CLI: ng version (should show Angular CLI ~21.x).

Why this step matters:

-Establishes a reliable foundation for Angular development
-Enables quick project creation and consistent tooling across projects

1-2 hours

Node.js, npm, Angular CLI, VS Code

$0

Definition of Done

•Node.js and npm installed and verified
•Angular CLI installed globally
•`ng version` displays Angular 21.x

Common Mistakes to Avoid

❌ Installing outdated Node.js version

→Use LTS version 20+ from official site

❌ Skipping global install flag (-g)

→Always use `npm install -g @angular/cli`

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🌐 Helpful Websites

Official Angular Documentation

documentation

Tutorials, guides, API reference for Angular 21

Angular GitHub Repository

repository

Source code, issues, contributions for Angular

Angular University

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Short lessons on advanced topics

🛠️ Useful Tools

Angular CLI

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Scaffolds and builds Angular projects

VS Code Angular Language Service

IDE Extension

IntelliSense and diagnostics for Angular

Node.js

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Runtime for Angular CLI and dev server

Learn Angular v21: Build Apps in 5 Steps