I still remember bombing my first Angular coding interview. The question was about dependency injection, and my brain just… blanked. I’d spent weeks memorizing syntax, but couldn’t explain how components actually talked to each other. That’s when I realized interview prep isn’t about cramming; it’s about understanding how things connect under pressure.

This post breaks down the most common Angular 6 interview questions components, services, directives, lifecycle hooks, forms, routing, RxJS, and more with short, direct examples and tangible takeaways—no filler, no theory dumps, just what you’ll actually face in the room.

If you want to go beyond reading and start practicing the way I did before landing interviews at Amazon, Meta, and TikTok, Interview Coder’s AI Interview assistant lets you run mock sessions, get instant feedback, and tighten your answers until they sound like second nature.

Summary

Most Angular guides either put you to sleep or feel like someone asked ChatGPT to summarize the docs. I built this one the way I wish someone had handed it to me before my Amazon loop focused, no fluff, just what actually gets asked.
You’ve got to talk components and services like you didn’t just binge-watch a tutorial. The same goes for RxJS; if you don’t know the difference between a Promise and an Observable, especially when to cancel or chain them, you’ll get exposed fast. Interviewers love async questions because they separate “I followed along” from “I’ve shipped things.”
With lifecycle hooks, don’t stop at ngOnInit. Show them you know why setup goes there instead of the constructor. And if you’re ignoring ngOnDestroy, congrats, you’ve probably got memory leaks. They’ll ask.
Knowing when to break logic into a directive versus a component is one of those signals that tells them if you’ve worked on real apps or just built toy projects. And when they bring up forms? You’d better know when to use template-driven for quick stuff and when to reach for reactive forms if things get serious. You’ll want to show that you actually understand what FormBuilder gives you.
If you're just starting, focus on the 20 most common questions. But if you're past the junior stage, expect to get grilled on architecture, state, and runtime tradeoffs, not just basic syntax.
I used Interview Coder to drill all of this. Mock interviews. Real-time coding. Brutally honest feedback. No fluff, just reps under pressure. It’s how I locked in Meta, then TikTok.
Read this like you’re prepping for a playoff game. Because that’s what the interview is.

20 Most Common Angular 6 Interview Questions for Freshers

I still remember bombing my first Angular interview because I couldn't explain why frameworks even exist. I had built three apps and thought I was ready. Spoiler: I wasn’t. They asked why Angular was created, and I froze like a React dev seeing two-way binding for the first time.

The truth is, you don’t get hired just because you can write working code. You get hired because you understand why things are built the way they are and can explain it under pressure.

This post isn’t theory. These are the actual types of questions I got when prepping for interviews at Meta, Amazon, and TikTok, and the answers I would give today.

Let’s go.

1. Why Were Client-Side Frameworks Like Angular Introduced?

Because manually wiring everything together in JavaScript got ridiculous.

Apps got bigger. Code got messier. Everyone was nesting jQuery inside jQuery. You’d change one thing and break five. Frameworks showed up with a rule structure to help us not shoot ourselves in the foot.

Why They Ask It

They want to see if you understand the “why” behind the tech, not just how to use it.

How To Answer

Talk about scaling. Say something like “As web apps got more complex, frameworks like Angular helped enforce a pattern components, separation of concerns, routing so teams didn’t burn time fixing spaghetti.”

Roy’s Tip

Use a Lego analogy. It’s dead simple. “Components are like Lego blocks. You don’t want to glue them together. You want to swap them in and out without the whole tower collapsing.”

2. How Does An Angular Application Work?

High-level? Angular finds main.ts, runs bootstrapModule(AppModule), and renders AppComponent into index.html. That’s your entry point.

From there:

angular.json tells the CLI where stuff is,
main.ts spins things up
AppModule bundles all components.
AppComponent hits the screen.

Why They Ask It

They're checking if you know how Angular initializes. Debugging weird startup errors starts here.

How To Answer

List the files in order: angular.json, main.ts, app.module.ts, app.component.ts, and finally index.html.

Roy’s Tip

Show you’ve actually debugged something before. Mention fixing a bootstrap array issue or a missing declaration once. That shows real-world experience.

3. What Are Some Advantages Of Angular Over Other Frameworks?

Routing, HTTP, forms, and state are all baked in
Templates are HTML-based (no JSX mental overhead)
Google’s backing = long-term stability

Why They Ask It

They want to know if you can evaluate tradeoffs. Not just parrot “Angular good.”

How To Answer

Mention built-in tools and declarative templates, and explain why that saves dev time. Keep it concrete.

4. Angular Vs React: What's The Difference?

Short version: Angular gives you everything. React makes you assemble it yourself.

Data Binding:

Angular → Two-way
React → One-way

Dependency Injection:

Angular → Built-in
React → Third-party

Language:

Angular → TypeScript
React → JavaScript

Mobile Support:

Angular → Yes
React → Only with React Native

Tooling:

Angular → Opinionated, built-in
React → Bring Your Own (BYO) everything

Don’t take sides. Say: “React’s great if you want freedom. Angular’s great if you want structure.”

5. Angular vs AngularJS?

This one’s easy if you’ve touched both.

Architecture: Angular uses components. AngularJS used controllers.
Language: Angular = TypeScript. AngularJS = JavaScript.
Mobile support: Angular works on mobile. AngularJS doesn’t.
Structure: Angular handles bigger apps better.
Syntax: Angular uses [ ] and ( ) for binding. AngularJS used ng-*.

Why They Ask It

You might migrate legacy code. They want to know if you can handle that.

6. How are Angular Expressions Different From JavaScript expressions?

Angular expressions:

Only access the local component
Can’t access the window
Are safer
Support pipes

Why They Ask It

They’re checking if you get how Angular avoids runtime surprises.

Roy’s Tip

Show an example where JS would return undefined, but Angular just shows nothing. Makes it click.

7. What is a Single Page Application (SPA)?

It’s an app that loads once, then swaps content via JS and client-side routing. No full page reloads.

Why They Ask It

SPAs change how data loads, how search engine optimization (SEO) works, and how fast users see changes.

Roy’s Tip

Mention tradeoffs: great UX, but SEO can be trickier, and first load time might suck.

8. What Are Templates In Angular?

Templates = HTML with Angular sauce (like {{ }} for binding, *ngIf, etc.)

They live:

Inline (in the decorator)
Or in an external .html file via templateUrl

Why They Ask It

They want to see if you understand where the view lives and how logic connects to it.

9. What Are Directives?

Directives change how things appear or behave.

Component: Has a view. Every component is a directive.
Structural: Changes layout. Ex: *ngIf, *ngFor
Attribute: Changes appearance. You can write your own.

Roy’s Tip

You will be asked about *ngIf. Know it cold.

10. Components, Modules, and Services: Explain

Components = views + logic
Modules = group things together (can be root or feature modules)
Services = reusable logic or data fetchers

CLI makes all of these easy:

ng g c your-component

ng g m your-module

ng g s your-service

Roy’s Tip

Mention providedIn: 'root' for services to get global singleton behavior.

11. What Is Scope?

This is AngularJS-era stuff.

The scope was how AngularJS handled data binding and expression evaluation. Angular (the new one) replaced that with components and inputs/outputs.

Roy’s Tip

If they’re asking this, they might still have legacy code. Mention that you're familiar but prefer component-based architecture.

12. What Is Data Binding In Angular?

It’s how the component and template talk.

{{}} — Interpolation
[property] — Property binding
(event) — Event binding
[(ngModel)] — Two-way binding

Roy’s Tip

Say which one you’d use in a real-world scenario. Ex: "For inputs, I use two-way binding via ngModel so I don’t have to manually sync the state."

13. What Is Two-Way Data Binding?

It's just combining property + event binding:

Any change to the username updates the input, and vice versa.

You’ll need to import FormsModule in your module to use ngModel.

14. What Are Decorators?

They’re metadata annotations with @ that tell Angular what your class is.

@Component — this is a UI piece
@NgModule — this is a module
@Injectable — this is a service
@Input / @Output — data in/out of components

15. What Are Annotations?

In Angular, decorators replaced older annotation syntax. They do similar things, such as attach metadata to classes.

Most of the time, you’ll just be working with decorators now.

16. What Are Pure Pipes?

They’re called only when the input changes by reference. Great for performance.

Use them to format static-ish stuff like dates or currency.

17. What Are Impure Pipes?

They run every change detection cycle, even if inputs don’t change.

You mark them like this:

@Pipe({ name: 'something', pure: false })

Only use these if you absolutely need to (like transforming data from a live stream or clock).

18. What is PipeTransform?

It’s the interface your custom pipes implement.

export class MyPipe implements PipeTransform {

transform(value: any, ...args: any[]): any {

// do stuff

}

You’ll need to import it from @angular/core.

19. How Do You Pass Data From Parent To Child?

Use @Input in the child component.

// parent.component.html

<app-child [message]="someValue"></app-child>

// child.component.ts

@Input() message: string;

20. Typescript Class With Constructor And Method?

Easy:

class InterviewBuddy {

name: string;

constructor(name: string) {

this.name = name;

}

greet() {

return `Hey ${this.name}, let’s prep.`;

}

Real Talk

Most devs prep syntax. That’s not enough. What trips people up is applying that knowledge under time pressure, when your brain’s lagging and the interviewer’s staring.

That’s where Interview Coder helped me back when I was grinding for internships at Amazon, Meta, and TikTok.

I built it to do the things LeetCode can’t:

Give you real-time feedback while you talk through problems
Record your screen and mic so you can review how you sound
Simulate pressure with live timed sessions

Try Interview Coder for Free

Don’t just memorize answers. Practice talking like someone who belongs in the room. Try Interview Coder for free, no sales pitch, just prep that actually sticks.

30 Angular 6 Interview Questions and Answers For Experienced

I didn’t get into Amazon, Meta, and TikTok by memorizing every decorator and lifecycle hook in Angular. I got in because I knew how to explain tradeoffs under pressure, with code and words, not just definitions.

The truth is, interview prep content online? Most of it’s just regurgitated docs dressed up in Medium syntax. People copy-paste definitions like ngOnInit() and think they’re “prepared.”

Spoiler: they’re not.

I made Interview Coder because I got tired of watching brilliant engineers bomb interviews they should’ve crushed, not because they lacked knowledge, but because they had no system for thinking clearly under fire. These 30 Angular questions are not a cram sheet. They’re your script for sounding like someone who’s actually shipped Angular apps under deadline.

If you're here to memorize answers, cool, but don’t stop there. Use these to build reflexes, not trivia recall.

1. What’s the difference between AOT and JIT?

Real Talk

This question isn’t about definitions. It’s about whether you’ve touched CI pipelines and know why bundle size matters.

AOT compiles templates at build time → faster startup, smaller runtime, earlier error detection.
JIT compiles in the browser at runtime → faster iteration during dev, slower startup.

When I Use What

Local dev = JIT for speed
CI & prod = AOT for safety and performance ng build --aot is your friend.

2. What Does @Component Actually Do?

It wires your class to the DOM.

Adds metadata like selector, templateUrl, and styleUrls
Angular uses that to figure out how to render your stuff.

Think of it as the config file that tells Angular, “This class belongs on this part of the page, styled like this, using this HyperText Markup Language (HTML).”

3. What are Services in Angular?

They’re how you avoid copy-pasting logic across components.

Marked with @Injectable
Usually singletons (if providedIn: 'root')
Injected via the constructor

Use them for data fetching, state management, caching, anything you don’t want tangled up in your UI code.

4. Promises vs Observables?

Promise = 1 value, not cancelable, eager
Observable = many values, cancelable, lazy

When I’m dealing with UI events, retry logic, or streams → Observable.

When I just need to fetch() something and move on → Promise.

Bonus: unsubscribe() saves memory. Don’t forget it.

5. ngOnInit vs Constructor?

Constructor → set up fields, don’t touch bindings.
ngOnInit() → safe to fetch data, call services, etc.

I treat ngOnInit() as the "real" startup for components.

6. How Do You Use *ngFor?

Bonus points if you mention trackBy for large lists to avoid rerendering everything when one item changes.

7. Template-Driven Vs Reactive Forms?

Template-Driven

Logic lives in the HTML
Easier for small forms

Reactive

Defined in the component
Better for testing, scaling, and complex validation

My rule: anything beyond basic inputs → go Reactive.

8. What Kind Of DOM Does Angular Use?

Standard DOM, but optimized with change detection.

It runs checks on data-bound expressions.
Use OnPush with immutable data for performance.
Avoid mutation when performance matters.

9. How Do You Create Dynamic Components?

Use ViewContainerRef and ComponentFactoryResolver (or better: Ivy's createComponent)
Insert into ng-template
Set inputs after creation

Clean up with componentRef.destroy() when you’re done.

10. How Do You Debug Angular?

Angular DevTools for component trees
Chrome DevTools for breakpoints + network tab
Use console.log() or debugger when desperate

I also log service inputs/outputs when tracing bugs across components.

11. Angular App Is Slow. What Now?

Lazy load routes
Audit bundle size with source-map-explorer
Use ChangeDetectionStrategy.OnPush
Compress assets, defer non-critical scripts

Start with what loads first. Cut that down.

12. Version Control Best Practices?

Use Git
Atomic, descriptive commits
.gitignore everything noisy (node_modules, dist)
Feature branches → Pull Requests → CI

If your commit history looks like “fix”, “another fix”, “real fix” — redo it.

13. How Do You Build A Custom Directive?

@Directive({ selector: '[appHighlight]' })

export class HighlightDirective {

constructor(private el: ElementRef) {

el.nativeElement.style.backgroundColor = 'yellow';

}

Use Renderer2 if you care about SSR or want to avoid directly touching the DOM.

14. MVVM in Angular?

Angular loosely fits MVVM:

Model = your data (from services)
View = templates
ViewModel = component class

Data-binding keeps ViewModel and View in sync.

15. What Is The Bootstrapping Module?

Usually AppModule. It:

Declares your root component
Imports other modules
Kicks off the app via bootstrap: [AppComponent]

Every Angular app starts here.

16. What is Change Detection?

Angular checks bindings and updates the DOM.

Runs top-down from the root
You can optimize with OnPush
Manually trigger with ChangeDetectorRef.markForCheck()

Pro Tip

immutable data + OnPush = performance win.

17. AOT Benefits?

Faster initial render
Fewer runtime errors
Smaller JS bundles
Better security (no template parsing in browser)

Use ng build --aot in CI and prod.

18. What are HTTP Interceptors?

They wrap Hyper-Text Transfer Protocol (HTTP) requests/responses.

Use them to:

Add auth headers
Handle global errors
Log traffic

19. What’s Transpiling?

Converts TypeScript to JavaScript
Done via tsc or Angular compiler
Generates source maps for debugging

You write TypeScript, the browser reads JavaScript. That’s the bridge.

20. What Is The Router State?

It’s the snapshot of the current route tree.

Use ActivatedRoute to:

Get route params (route.snapshot.params)
Observe param changes (route.params.subscribe(...))

Useful for breadcrumbs, nested routes, and guards.

21. What Are Router Links?

Binds navigation to the Angular router
router-outlet renders the matched component
Add routerLinkActive="active" for styling

Use router.navigate() in code.

22. Lifecycle Hooks?

Most used:

ngOnInit → start logic
ngOnChanges → respond to input changes
ngOnDestroy → clean up (unsubscribe)

Others like ngAfterViewInit exist, but you don’t need all of them unless you’re doing DOM tricks.

23. What Does The @Component Decorator Do?

It marks a class as a component.

Contains metadata:

selector
templateUrl
styleUrls

Angular reads this and wires up rendering.

24. What Are Property Decorators?

They add metadata to class fields.

Common ones:

@Input() → parent passes data in
@Output() → child emits events

They control component APIs.

25. Parameterized Pipes?

They format output.

First param comes after :
Multiple params separated by colons

Used for currency, dates, decimals, etc.

26. What Are Pipes?

They transform data in templates.

Built-in

date, currency, uppercase, etc.

Custom

implement PipeTransform

@Pipe({name: 'myPipe'})

export class MyPipe implements PipeTransform {

transform(value: any, ...args: any[]) { return modifiedValue; }

}

27. What’s Dependency Injection?

Angular wires up services for you.

Use @Injectable()
Inject into components via constructor
Scopes controlled by providedIn

You don’t need to do anything manually. DI handles the wiring.

28. Observables vs Promises?

We already did this. But here’s the fast rundown:

Values:

Promise → One
Observable → Many

Cancelable:

Promise → No
Observable → Yes

Lazy:

Promise → No
Observable → Yes

Operators:

Promise → No
Observable → Yes

29. Interpolation vs Property Binding?

Interpolation is shorthand for binding string values. Property binding lets you control DOM properties directly.

30. RxJS in Angular?

It’s how you work with Observables
Tons of operators: map, filter, switchMap, mergeMap, etc.
Use .pipe() to compose

I use RxJS every time I do:

HTTP
Event handling
Reactive state

Final Word

If you’re just copying these answers into Notion, cool. But the real test is, can you explain them out loud, under pressure, with a recruiter typing in the background?

If not, that’s where Interview Coder comes in.

Try it free, no fluff, just real-time prep that actually sticks.

13 Angular Scenario-Based Interview Questions (With Zero BS)

Let’s be real that most Angular interview prep is too safe.

You memorize a few lifecycle hooks. You could review some syntax sugar. Then you walk into the interview and they hit you with, “So… how’d you deal with XSS in that dashboard project?” And suddenly, all those flashcards don’t mean much.

I’ve tanked interviews by prepping like that. The kind where your Leetcode muscle is strong, but your real-world Angular recall is slow because you haven’t practiced talking through weird bugs or explaining why you picked one pattern over another.

This list fixes that.

Every question here comes from an actual scenario I’ve either:

Hit myself in real projects
Bombed in a real interview
Or used as the interviewer to test depth

If you’re aiming for senior roles or just tired of feeling rattled every time someone says "talk me through your architecture decisions," start here.

1. What Happens When You Use <Script> Inside A Template?

Angular treats it like it’s radioactive. It strips it out automatically to prevent Cross-Site Scripting (XSS) attacks. You’ll get a warning in the console, and whatever you were hoping that <script> would do? It won’t.

Example

export class InnerHtmlBindingComponent {

htmlSnippet = 'Template <script>alert("You are hacked !!!!")</script> <b>Syntax</b>';

}

Angular sees this, removes the <script>, and just leaves the safe HTML. If you're binding with innerHTML, sanitize it or get burned.

2. How do you include SASS in an Angular project?

When creating a new project:

ng new my-project --style=sass

If the project is already created, change the default using:

ng config schematics.@schematics/angular:component.styleext scss

This sets up all future components to use .scss instead of .css. Not hard. But easy to forget under pressure.

3. How Do You Deal With Errors In Observables?

Don't even try try/catch. That’s a rookie move in async land. Use the error callback.

Example

myObservable.subscribe({

next(val) { console.log('Next: ' + val); },

error(err) { console.error('Error:', err); }

});

You can also use catchError in the pipe. Depends on the context.

4. How Do You Share Data Between Components?

Multiple ways. Here's the quick rundown:

Parent to Child

@Input()

Child to Parent

@Output() + EventEmitter

Child to Parent (advanced)

@ViewChild()

Shared Service

Singleton pattern + RxJS subjects or signals

If you can’t explain when not to use a shared service, you’ll sound like you're just cargo-culting architecture.

5. How Do You Pick An Element From A Template?

Use @ViewChild. Works after ngAfterViewInit, or right away in signal-based apps.

Example

@ViewChild('inputEl') input: ElementRef;

ngAfterViewInit() {

console.log(this.input.nativeElement.value);

}

6. When Should You Use An InjectionToken?

When your dependency isn’t a class. Config values, primitives, interfaces.

Example

export const API_ENDPOINT = new InjectionToken<string>('API_ENDPOINT');

providers: [

{ provide: API_ENDPOINT, useValue: '/api/prod' }

]

Use cases:

Configs
Third-party integrations
Anything you want the consuming app to plug into a library

7. What Are Resolution Modifiers, Really?

These mess people up in interviews because the names suck. Here's what matters:

self: Only look in the current injector
skipSelf: Start search in parent
host: Only look in the host component/directive
optional: Don’t throw if it’s missing

Example

Injecting NgControl only if it’s present on the current element:

inject(NgControl, { self: true, optional: true })

8. What's The Point Of viewProviders vs providers?

If you're using content projection (<ng-content>), this matters.

providers = Available to content inside your component
viewProviders = Only available to your template, not projected content

Use viewProviders if you want complete control and don't want projected content screwing with your service instances.

Most people never touch this unless they're building component libraries or dynamic forms.

9. When To Use Effect And Untracked In Signal-Based Apps?

Use effect when you want to run something reactively but don’t care about returning a value.

Use untracked inside the effect when you want to read a signal without making it a dependency. If you don’t, enjoy your infinite loops.

Example

Focus input only when edit mode is on:

afterRenderEffect(() => {

if (editMode()) {

untracked(() => editInput().nativeElement.focus());

}

});

10. Are Lifecycle Hooks Still Needed In A Signal-First App?

Not really. Most can be replaced:

ngOnInit → constructor or effect()
ngOnChanges → computed()
ngAfterViewInit → viewChild() + effect()
ngOnDestroy → onDestroy() with DestroyRef

Exceptions exist, but you’ll sound way more senior if you can explain this transition clearly.

11. What Is A Higher-Order Observable?

An observable that emits other observables. That’s it.

The classic use case is a search box:

search$ = control.valueChanges.pipe(

switchMap(val => http.get(`/search?q=${val}`))

);

Different maps:

switchMap: Cancel previous
mergeMap: Run all
concatMap: Queue them
exhaustMap: Ignore new if busy

If you can describe why you'd pick each, you're ahead of most candidates.

12. What's The Difference Between share() and shareReplay()?

share() → Shares a stream, but doesn’t cache the last value
shareReplay() → Shares and caches the last N emissions

If you’re seeing random re-fetches when navigating back to a route, you probably need shareReplay(1) and didn’t know it.

13. What Does This Code Do? (scan() + expand())

This is the kind of code that either:

Makes a candidate shine, or
Makes them panic and pretend they "haven’t seen that pattern much"

Use Case

Paginated API fetching with recursive logic.

expand((_, i) => (i < 2 ? api.get(offset + 20) : EMPTY))

scan((acc, curr) => [...acc, ...curr])

expand() keeps calling itself until a condition fails
scan() builds up the full result

Perfect for infinite scroll, but easy to misuse. If someone brings this up in an interview, they’re checking if you’ve worked beyond CRUD apps.

Final Thought

Most candidates prep by cramming flashcards. Then they get a curveball like “Why did you use InjectionToken in that library?” and blank.

This list won’t save you if you don’t actually talk through these questions out loud.

That’s what Interview Coder helps you do:

Record mock sessions
Get hints without breaking flow
Build consistency under pressure

Try it free. No fluff, no catch. Just reps that work.

Start practicing smarter with Interview Coder

Nail Coding Interviews with our AI Interview Assistant − Get Your Dream Job Today

I’ve bombed interviews I had no business failing. Not because I didn’t know the answer, but because I was too busy panicking about whether the interviewer saw me alt-tab or caught something weird in my task manager.

That stuff fries your brain faster than a buggy merge on demo day. That’s why I built Interview Coder. It gives you quiet backup when it counts, no flashing extensions, no sketchy overlays. Just clean, invisible help while you focus on solving the damn problem. Free plan’s zero bucks. Pro plan? Still cheaper than one missed offer.

Summary

20 Most Common Angular 6 Interview Questions for Freshers

1. Why Were Client-Side Frameworks Like Angular Introduced?

Why They Ask It

How To Answer

Roy’s Tip

2. How Does An Angular Application Work?

Why They Ask It

How To Answer

Roy’s Tip

3. What Are Some Advantages Of Angular Over Other Frameworks?

Why They Ask It

How To Answer

4. Angular Vs React: What's The Difference?

5. Angular vs AngularJS?

Why They Ask It

6. How are Angular Expressions Different From JavaScript expressions?

Why They Ask It

Roy’s Tip

7. What is a Single Page Application (SPA)?

Why They Ask It

Roy’s Tip

8. What Are Templates In Angular?

Why They Ask It

9. What Are Directives?

10. Components, Modules, and Services: Explain

Roy’s Tip

11. What Is Scope?

Roy’s Tip

12. What Is Data Binding In Angular?

Roy’s Tip

13. What Is Two-Way Data Binding?

14. What Are Decorators?

15. What Are Annotations?

16. What Are Pure Pipes?

17. What Are Impure Pipes?

18. What is PipeTransform?

19. How Do You Pass Data From Parent To Child?

20. Typescript Class With Constructor And Method?

Real Talk

Try Interview Coder for Free

Related Reading

30 Angular 6 Interview Questions and Answers For Experienced

1. What’s the difference between AOT and JIT?

Real Talk

When I Use What

2. What Does @Component Actually Do?

3. What are Services in Angular?

4. Promises vs Observables?

5. ngOnInit vs Constructor?

6. How Do You Use *ngFor?

7. Template-Driven Vs Reactive Forms?

Template-Driven

Reactive

8. What Kind Of DOM Does Angular Use?

9. How Do You Create Dynamic Components?

10. How Do You Debug Angular?

11. Angular App Is Slow. What Now?

12. Version Control Best Practices?

13. How Do You Build A Custom Directive?

14. MVVM in Angular?

15. What Is The Bootstrapping Module?

16. What is Change Detection?

Pro Tip

17. AOT Benefits?

18. What are HTTP Interceptors?

19. What’s Transpiling?

20. What Is The Router State?

21. What Are Router Links?

22. Lifecycle Hooks?

23. What Does The @Component Decorator Do?

24. What Are Property Decorators?

25. Parameterized Pipes?

26. What Are Pipes?

Built-in

Custom

27. What’s Dependency Injection?

28. Observables vs Promises?

29. Interpolation vs Property Binding?

30. RxJS in Angular?