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Angular Tutorial - GeeksforGeeks

Last Updated : 21 Apr, 2025

Angular is a powerful, open-source web application framework for building dynamic and scalable single-page applications (SPAs). Developed by Google, Angular provides a comprehensive solution for front-end development with tools for routing, form handling, HTTP services, and more.

• Designed for building scalable web applications
• Component-based architecture for efficient development
• Supports powerful features like two-way data binding, routing, and dependency injection
• Ideal for single-page applications (SPAs) and progressive web apps (PWAs)

To begin developing with Angular, you first need to set up your development environment by installing Node.js and Angular CLI.

• Download and Install Node.js and NPM
• Angular CLI | Angular Project Setup
• Local Environment Setup in Angular
• Getting Started with Angular

Let us now take a look at our first code example.

// Import Angular core modules
import { Component } from '@angular/core';

// Define the AppComponent
@Component({
    selector: 'app-root',
    template: '<h1>Welcome to the Angular Tutorial</h1>',
    styles: ['h1 { color: blue; }']
})
export class AppComponent {
    title = 'angular-tutorial';
}

Now, open your browser and visit http://localhost:4200 to see your Angular app in action.

Welcome to the Angular Tutorial

In this example

• The AppComponent class is decorated with @Component, which defines its selector, template, and styles.
• The template uses Angular's interpolation syntax to display a simple "Welcome to the Angular Tutorial" message.
• The AppComponent class defines the component logic and properties.

• Simplifies Front-End Development: Angular provides all the tools needed for front-end development in a single framework, making it easier to build dynamic and scalable applications.
• Component-Based Architecture: Angular’s component-based structure helps break down large applications into smaller, manageable parts, making development and maintenance easier.
• Powerful Features: Angular offers powerful features such as two-way data binding, routing, and form validation that speed up the development process.
• Seamless Integration: Angular integrates well with RESTful APIs, making it ideal for building full-stack web applications and SPAs.
• Strong Community Support: With strong backing from Google and an active community, Angular is continuously updated and improved, ensuring long-term stability.

Angular tutorial Prerequisites: HTML, JavaScript, TypeScript

• Introduction to Angular
• Setting up Angular Development Environment
• Creating Your First Angular App
• Architecture of Angular Applications
• Components and Templates
• Data Binding in Angular
• Directives in Angular
• Services and Dependency Injection
• Angular Modules
• Pipes in Angular

• Angular 2
• Angular 4
• Angular 5
• Angular 6
• Angular 7
• Angular 8
• Angular 9
• Angular 10
• Angular 11
• Angular 12
• Angular 13
• Angular 14
  
• Angular 15
• Angular 16
• Angular 17
• Angular 18

• ToDo List
• Simple Web-app
• Weather App
• Expense Tracker
• Portfolio Website
• Dice Rolling App
• Movie App
• Color Picker App
• Quiz App
• Joke Generator App
• BMI Calculator
• Snake Game
• Event Calender
• Online Gift Store

• Angular Interview Questions and Answers
• Angular Exercises, Practice Questions and Solutions
• AngularJS Quiz | Set-1
• AngularJS Quiz | Set-2
• AngularJS Quiz | Set-3

• It uses components and directives. Components are the directives with a template.
• It is written in Microsoft’s TypeScript language, which is a superset of ECMAScript 6 (ES6).
• Angular is supported by all the popular mobile browsers.
• Properties enclosed in “()” and “[]” are used to bind data between the view and the model.
• It provides support for TypeScript and JavaScript.
• Angular uses @Route Config{(…)} for routing configuration.
• It has a better structure compared to AngularJS, easier to create and maintain for large applications but behind AngularJS in the case of small applications.
• It comes with the Angular CLI tool.

1. Single-Page Applications (SPAs): Angular excels at creating SPAs, where a single webpage dynamically updates content as users interact with it.
2. Real-Time Applications: Use Angular for chat applications, weather forecasts, and live tracking systems that require immediate updates.
3. Enterprise Applications: Angular is commonly used for developing large-scale enterprise applications. Its modular architecture, dependency injection, and TypeScript support make it suitable for building complex and maintainable applications.
4. Content Management Systems (CMS): Angular can be used to build custom content management systems, providing a dynamic and responsive user interface for managing content.

• Angular version 1.0 was released in 2012.
• Miško Hevery, a employee at Google, started to work with AngularJS in 2009.
• The project is now officially supported by Google, and the idea turned out very well.

The cheat sheet is a quick reading manual that will help you to revise all the concepts at a glance. The detailed description is covered in the Angular Cheat Sheet – A Basic Guide to Angular Article.

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