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Xamarin Angular interview questions.
Only challenges
- 2.
What are pipes? Give me an example.
Answer:
- 3.
What is Routing Guard in Angular?
Answer:
- 4.
How would you run unit test?
Answer:
- 5.
What is the equivalent of "ngShow" and "ngHide" in Angular?
Answer:
- 6.
What is the difference between "@Component" and "@Directive" in Angular?
Answer:
- 7.
What is a bootstrapping module?
Answer:
- 8.
What is the minimum definition of a component?
Answer:
- 9.
What is a component? Why would you use it?
Answer:
- 10.
What are the differences between AngularJS (angular 1.x) and Angular (Angular 2.x and beyond)?
Answer:
- 11.
What is interpolation?
Answer:
- 12.
What is the equivalent of ngShow and ngHide in Angular?
Answer:
- 13.
What is the difference between *ngIf vs hidden?
Answer:
- 14.
What are observables?
Answer:
- 15.
What is the difference between Structural and Attribute directives in Angular?
Answer:
- 16.
What is a service, and when will you use it?
Answer:
- 17.
What are some differences between Angular 2 and 4?
Answer:
- 18.
What's the difference between an Angular component and module?
Answer:
- 19.
How would you protect a component being activated through the router?
Answer:
- 20.
You have an HTML response I want to display. How do I do that?
Answer:
- 21.
What is an observer?
Answer:
- 22.
What is an observable?
Answer:
- 23.
What is the purpose of base href tag?
Answer:
- 24.
What does this line do?
Answer:
- 25.
How can I select an element in a component template?
Answer:
- 26.
How do you categorize data binding types?
Answer:
- 27.
What is the purpose of Wildcard route?
Answer:
- 28.
When would you use eager module loading?
Answer:
- 29.
How to inject base href?
Answer:
- 30.
How do you perform error handling in observables?
Answer:
- 31.
Explain how custom elements works internally?
Answer:
- 32.
What are custom elements?
Answer:
- 33.
What are dynamic components?
Answer:
- 34.
What is the option to choose between inline and external template file?
Answer:
- 35.
Why should ngOnInit be used, if we already have a constructor?
Answer:
- 36.
What is multicasting?
Answer:
- 37.
How do you perform Error handling for HttpClient?
Answer:
- 38.
What is the difference between @Component and @Directive in Angular?
Answer:
- 39.
What is difference between "declarations", "providers" and "import" in NgModule?
Answer:
- 40.
What is the use of codelyzer?
Answer:
- 41.
What is the difference between promise and observable?
Answer:
- 42.
Angular 8: What is Angular Ivy?
Answer:
- 43.
Explain the difference between Promise and Observable in Angular?
Answer:
- 44.
What is Reactive Programming and how to use one with Angular?
Answer:
- 45.
What's new in Angular 6 and why shall we upgrade to it?
Answer:
- 46.
What is Protractor?
Answer:
- 47.
What is subscribing?
Answer:
- 48.
What is router outlet?
Answer:
- 49.
What is router state?
Answer:
- 50.
What is Angular Universal?
Answer:
- 51.
Angular 8: What is Bazel?
Answer:
- 52.
Why would you use a spy in a test?
Answer:
- 53.
Why Incremental DOM Has Low Memory Footprint?
Answer:
- 54.
What happens if you use script tag inside template?
Answer:
- 55.
What is the point of calling "renderer.invokeElementMethod(rendererEl, methodName)"?
Answer:
- 56.
What is Redux and how does it relate to an Angular app?
Answer:
- 57.
What is AOT?
Answer:
- 58.
Can you explain the difference between Promise and Observable in Angular? In what scenario can we use each case?
Answer:
- 59.
What's new in Angular 8?
Answer:
- 60.
Explain the difference between "Constructor" and "ngOnInit"
Answer:
- 61.
What are the utility functions provided by RxJS?
Answer:
- 62.
What is activated route?
Answer:
- 63.
Do I need a Routing Module always?
Answer:
- 64.
What is a parameterized pipe?
Answer:
- 65.
What is TestBed?
Answer:
- 66.
What are the ways to control AOT compilation?
Answer:
- 67.
What are the Core Dependencies of Angular 7?
Answer:
- 68.
Angular 8: Explain Lazy Loading in Angular 8?
Answer:
- 69.
How to bundle an Angular app for production?
Answer:
- 70.
How would you control size of an element on resize of the window in a component?
Answer:
- 71.
What is Zone in Angular?
Answer:
- 72.
When should I store the "Subscription" instances and invoke unsubscribe() during the NgOnDestroy life cycle and when can I simply ignore them?
Answer:
- 73.
How do you create application to use scss? What changed for Angular 6?
Answer:
- 74.
How would you insert an embedded view from a prepared TemplateRef?
Answer:
- 75.
Why do we need compilation process?
Answer:
- 76.
Explain the purpose of Service Workers in Angular
Answer:
- 77.
What is the need for SystemJS in Angular?
Answer:
- 78.
What is Reactive programming and how does it relate to Angular?
Answer:
- 79.
Are there any pros/cons (especially performance-wise) in using local storage to replace cookie functionality?
Answer:
- 80.
What is Ivy Renderer? Is it supported by Angular 7?
Answer:
- 81.
What are the lifecycle hooks for components and directives?
Answer:
- 82.
What would be a good use for NgZone service?
Answer:
- 83.
What is the difference between pure and impure pipe?
Answer:
- 84.
What is incremental DOM? How is it different from virtual DOM?
Answer:
- 85.
How to detect a route change in Angular?
Answer:
- 86.
Name some security best practices in Angular
Answer:
- 87.
What are the advantages with AOT?
Answer:
- 88.
Angular 8: Why we should use Bazel for Angular builds?
Answer:
- 89.
Name and explain some Angular Module Loading examples
Answer:
- 90.
What does "detectChanges" do in Angular jasmine tests?
Answer:
- 91.
What are the mapping rules between Angular component and custom element?
Answer:
- 92.
Do I need to bootstrap custom elements?
Answer:
- 93.
When does a lazy loaded module is loaded?
Answer:
- 94.
What does a just-in-time (JIT) compiler do (in general)?
Answer:
- 95.
Why would you use lazy loading modules in Angular app?
Answer:
- 96.
Why would you use renderer methods instead of using native element methods?
Answer:
- 97.
What is ngUpgrage?
Answer:
- 98.
Angular 9: What are some new features in Angular 9?
Answer:
- 99.
What are observable creation functions?
Answer:
- 100.
When to use query parameters versus matrix parameters?
Answer:
- 101.
What's new in Angular 7?
Answer:
- 102.
Name some differences between SystemJS vs WebPack?
Answer:
- 103.
Why did the Google team go with incremental DOM instead of virtual DOM?
Answer:
- 104.
What is the difference between BehaviorSubject vs Observable?
Answer:
- 105.
Is there no equivalent to $scope.emit() or $scope.broadcast() in Angular?
Answer:
- 106.
Angular 9: How Would You Compare View Engine vs Ivy?
Answer:
- 107.
Why Incremental DOM is Tree Shakable?
Answer:
- 108.
Why angular uses url segment?
Answer:
- 109.
Just-in-Time (JiT) vs Ahead-of-Time (AoT) compilation. Explain the difference.
Answer:
- 110.
Angular 9: What is Locality principle for Ivy?
Answer:
- 111.
What is the default compilation for Angular 5?
Answer:
- 112.
Do you know how you can run angularJS and angular side by side?
Answer:
- 113.
Could you provide some particular examples of using ngZone?
Answer:
- 114.
How would you extract webpack config from angular cli project?
Answer:
- 115.
Angular 8: How does Ivy affect the (Re)build time?
Answer:
- 116.
Angular 8: What are some changes in Location module?
Answer:
- 117.
Angular 9: Explain improvements in Tree-Shaking
Answer:
- 118.
Could I use jQuery with Angular?
Answer:
- 119.
How to set headers for every request in Angular?
Answer:
- 120.
What is the Angular equivalent to an AngularJS "$watch"?
Answer:
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23 Databases interview questions and answers for software engineers Databases
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13 CAP Theorem interview questions and answers for software engineers CAP Theorem
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