Angular_QNA

Top 20 Angular Interview Questions & Answers (2025 Edition) Top 20 Angular Interview Questions & Answers (2025 Edition) Prepare for your next Angular developer interview with these key concepts. Angular Questions and Answers 1. What is Angular? Angular is a front-end web application framework developed by Google. It’s built on TypeScript and is used to create single-page applications (SPAs). It provides features like dependency injection, data binding, routing, and component-based architecture. 2. What’s new in Angular 17–18 (2025 updates)? Angular 17 introduced deferrable views , signal-based reactivity , and faster build performance . Angular 18 (expected in 2025) focuses on better integration with modern JavaScript runtimes and smaller bundle sizes. 3. What is a Component in Angular? A Component is the basic building block of Angular apps. It controls a part of the user in...

Understanding Interceptors in Angular Understanding Interceptors in Angular A simple guide for beginners 🔍 What is an Interceptor? In Angular, an Interceptor is like a middleman between your app and the server. Whenever you make an HTTP request, the interceptor can see , modify , or even stop it before it goes to the server. It also works the other way — when the server sends a response back, the interceptor can inspect or modify it before your app receives it. Think of it like a security guard who checks every request and response going in or out of your app. Your App → Interceptor → Server Server → Interceptor → Your App ⚙️ Why Use an Interceptor? Add an authentication token to every request automatically Show or hide a loading spinner while waiting for data Handle errors globally (e.g., “Server not available” messages) Log requests and respo...