Question 1

What are components and modules in Angular?

Accepted Answer

**Target Audience:** Anyone preparing for an Angular interview — assumes basic TypeScript classes, no Angular required. **Difficulty:** Easy > **How to read this doc:** Plain language first, then 📌 Interview term: callouts with the vocabulary an interviewer expects. Every output and error message quoted below was produced by compiling the code with ngc (strict templates) on Angular 22.2.3 and running it. ## 1. Why This Even Matters — A Story First Think of a restaur

Question 2

What are standalone components?

Accepted Answer

**Target Audience:** Developers preparing for an Angular interview who know what a component is and have seen, or heard of, NgModules. **Difficulty:** Easy > **How to read this doc:** Plain language first, then 📌 Interview term: callouts. Everything under a "Verified" heading was compiled with ngc on Angular 22.2.3 and run; the lazy-loading log in section 5 came from a real provideRouter setup. ## 1. Why This Even Matters — A Story First Picture packing

Question 3

How do functional route guards and lazy loadComponent work in modern Angular?

Accepted Answer

**Target Audience:** Developers using standalone components and lazy routes who want to know exactly what downloads when — assumes you know [route guards](/interview-question/what-are-route-guards-in-angular) and [lazy loading](/interview-question/how-does-routing-and-lazy-loading-work-in-angular). **Difficulty:** Medium to Hard > **How to read this doc:** Plain language first, then 📌 Interview term: callouts. Every "loader called" line below was printed by a real loader function

Question 4

Standalone bootstrapApplication — how does Angular bootstrap without NgModules in 2025?

Accepted Answer

**Target Audience:** Developers who can bootstrap an app and now want to explain what happens underneath, for senior interviews or for debugging startup problems. **Difficulty:** Medium to Hard > **How to read this doc:** Plain language first, then 📌 Interview term: callouts. The sequence below was read from the installed Angular 22.2.3 source (bootstrapApplication in @angular/platform-browser, internalCreateApplication and bootstrap

Question 5

What is provideHttpClient(withInterceptors([...])) and how does it replace legacy HTTP interceptor providing?

Accepted Answer

**Target Audience:** Developers maintaining or migrating an [NgModule](/interview-question/what-are-components-and-modules-in-angular)-era Angular app with class-based interceptors. **Difficulty:** Medium > **How to read this doc:** Plain language first, then 📌 Interview term: callouts. The deprecation notes are quoted from the installed Angular 22.2.3 typings, and every ordering result was produced by booting real class and functional interceptors (compiled with ngc)

Question 6

How has the Angular build changed with esbuild + Vite (ng build / ng serve)?

Accepted Answer

**Target Audience:** Developers who know Angular apps but not the build tooling underneath the [CLI](/interview-question/what-does-the-angular-cli-provide); useful before an upgrade from webpack-era projects. **Difficulty:** Medium > **How to read this doc:** Plain language first, then 📌 Interview term: callouts. All terminal output below was produced by running Angular CLI 22.2.3 on a fresh ng new app (one lazy route added) under Node 24: ng build,

Question 7

How does routing and lazy loading work in Angular?

Accepted Answer

**Target Audience:** Anyone preparing for an Angular interview — assumes you know what a component is, no router experience needed. **Difficulty:** Easy to Medium > **How to read this doc:** Plain language first, then 📌 Interview term: callouts with the vocabulary an interviewer expects. The navigation logs in section 5 were produced by compiling the example with ngc on Angular 22.2.3 and driving it with Router.navigateByUrl; the bundle sizes in section 6

Question 8

How do you handle micro-frontend architecture in Angular using Module Federation?

Accepted Answer

**Target Audience:** Engineers designing a large Angular front end split across several teams, and anyone asked a front-end architecture question in a senior interview. **Difficulty:** Hard > **How to read this doc:** Plain language first, then 📌 Interview term: callouts. For this answer a real remote and host were generated and built with @angular-architects/native-federation 22.2.2 on Angular CLI 22.2.3, and the remote's exposed component was loaded with Native Fede

Question 9

What are preloading strategies?

Accepted Answer

**Target Audience:** Developers who already lazy load routes and want to remove the first-visit delay — assumes [lazy loading](/interview-question/how-does-routing-and-lazy-loading-work-in-angular) basics. **Difficulty:** Easy to Medium > **How to read this doc:** Plain language first, then 📌 Interview term: callouts. The loader logs in section 4 were printed by real loader functions while the compiled example (Angular 22.2.3, ngc) was navigated with Router.navi

ANGULARDECODED.

Easy