Angular Introduction

What is Introduction in Angular?

Angular is a complete front-end framework maintained by Google for building large single-page applications. Unlike a UI library, it ships with routing, HTTP, forms, dependency injection, testing and a build system in the box, and it is written in TypeScript from the ground up.

Why Introduction matters

Angular dominates enterprise front ends — banking, insurance, telecom, healthcare and large service companies in India. Because everything is standardised, a developer can move between Angular teams and find the same structure, which is exactly why big organisations choose it.

Introduction example

import { Component } from '@angular/core';

@Component({
  selector: 'app-welcome',
  standalone: true,
  template: `<h1>Hello, {{ name }}!</h1>`,
})
export class WelcomeComponent {
  name = 'Angular';
}

How this works

The @Component decorator attaches metadata to an ordinary TypeScript class: which HTML tag it replaces, and what template to render. Anything public on the class is available to the template — {{ name }} reads the property directly.

Key points to remember

• Angular (2 and later) is a complete rewrite of AngularJS 1.x — they share only a name.
• TypeScript is not optional; the framework is designed around its type system and decorators.
• Two-way binding, DI and RxJS are the three ideas that distinguish it from React.
• Releases follow a predictable six-month cadence with long-term support versions.

Angular compared with React and Vue

Common mistakes with Introduction

• Following an AngularJS 1.x tutorial by mistake — $scope and ng-controller belong to a different framework.
• Trying to learn Angular without any TypeScript; the syntax will read as noise.
• Starting with NgModules-based tutorials when new projects are standalone by default.