Angular Cheat Sheet for Beginners (Quick Revision Guide)

If you're learning Angular or preparing for interviews, remembering everything can feel overwhelming. So here’s a simple, quick, and practical Angular Cheat Sheet to help you revise faster What is Angular? Angular is a frontend framework used to build dynamic, scalable web applications using TypeScript. 1. Component (Basic Building Block) Every Angular app is built using components. import { Component } from '@angular/core'; @Component({ selector: 'app-root', template: <h1>Hello Angular</h1> }) export class AppComponent {} 2. Directives Directives help you control the DOM. *ngIf → Conditional rendering *ngFor → Loop through data Welcome User {{ item }} 3. Data Binding Angular supports multiple types of data binding: Interpolation → {{ data }} Property Binding → [value]="data" Event Binding → (click)="handleClick()" Two-way Binding → [(ngModel)]="data" 4. Services & Dependency Injection Used to share data and logic across components. @Injectable() export class DataService { getData() {