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Angular 2 Interview Questions and Answers

Angular 4 Interview Questions and Answers | A Complete Guide Book

For Angular documentation kindly refer to – A Complete Book of Angular 6

Fundamental Concepts of Angular

What Is Angular?What's New in Angular 4?
How to Setup Angular 4 Development Environment?What Is Architecture Overview of Angular?
What Is a Template Reference Variable? What Is Bootstrapping in Angular?

Angular 4 Components

What Are Components? What Is an Entry Component?
When do I add components to entryComponents? Why does Angular need an EntryComponents?

Angular 4 Modules

What Is Modules? What are the @NgModule Metadata Properties?
Why use multiple NgModules? What Are the Purpose of @NgModule?
What Types of @NgModules? What Is Feature Modules? What Are the Types of Feature Modules?
Why you use BrowserModule, CommonModule, FormsModule, RouterModule, and HttpClientModule? What are the differences in NgModules and JavaScript Modules?

Angular 4 Directives and Decorators

What Is Angular Directives? What Are Angular Decorators?
What are the differences between @Component and @Directive? How to Create Custom Directives?

Angular 4 Compilers

What is Ivy Renderer? What Angular is doing with Bazel Compiler?

Angular 4 Dependency Injection (DI)

What Is Dependency Injection (DI)? What Is Injectors?
What Are @Injectable providers? What Is Injector tree? What Is Injector bubbling?

Angular Services

What Is Angular Services? How to Setup and Create Angular Services?
What Is Angular Singleton Service?

Angular Pipes

What Is Pipe Decorator? What Is Pipe? Why use Pipes?
What Is PipeTransform interface? What Is Impure Pipe?
What Is Pure Pipe? What Are Inbuilt Pipes?
What Is Parameterizing Pipe? What Is Chaining Pipe?

Angular Routing and Navigation

What Is Routing and Navigation in Angular? What is Angular Router and Router module?
What is Routes and Route Properties? How Angular Router Works?
What Is Angular base Elements? How to Append Base URL to HTTP requests in Angular?
What Is PathLocationStrategy? What Is HashLocationStrategy?
What Is Router imports? How to configure Angular routes?
What Is Router outlet? Is it possible to have a multiple router-outlet in the same template?
What Is Angular Router link? What Is RouterLinkActive in Angular?
What Is RouterState in Routers? What Is ActivatedRoute in Routes?
What Is Router events in Angular? Routing and Navigation FAQs

Angular HttpClient

What Is HttpClient in Angular? What Is Angular HttpInterceptor?
What’s the difference between HTTP and HttpClient? HttpModule vs HttpClientModule
What Are Angular HttpHeaders? How to set a custom header on the request?
How to catch and log specific Angular errors in your app? How to Create a Custom ErrorHandler?

Form, Template, and Validations

What Are Validator functions - Async and Sync Validators? What Is a Template Reference variable?
How to bind to user input events to component event handlers? How to get user input from the $event object?
How to get user input from a template reference variable? How to Create Custom Form Validations in Angular?

Angular Cookies

What Is Angular Cookie? How to Install cookies in Angular?
What are the cookies methods? What are the Advantages of Token-Based Authentication?

Others

How to Upgrade Web Applications from Angular2 to Angular4? How to Set Http Request Header in Angular 4?
What are differences between Angular 4 and Angular 2? What Is the forRoot Method in Angular4?
What is If-Else-and-Then Conditions in Angular4?What Is the Difference Between [ngFor] and [ngForOf]?
What Are Isolated Unit Tests? What Are Angular Testing Utilities?
Isolated Unit Tests vs. Angular Testing Utilities! What classes should I add to module's declarations?
What classes should I not add to module's declarations in Angular 4?What Happen when I Import the same Module Twice?
Angular 4 Grid with CRUD operations What Is Angular Router? What’s New Angular 4 Router?
Angular 4 Error Handling - Logging, Retry Request and HttpCache! How to Handling Error and Logging it?
How to Implement Http Cache using Interceptors in Angular 4? How To handle and retry the failed request due to Poor Network Connection in Angular 4?
How to Validate Form in Angular 4? How to Validate Password and Confirm Password in Angular 4?
How To Handle XSS or CSRF Attacks in Angular 4 ? How can XSS be done in an Angular application? How can we fix it?
How Angular Apps Prevent this Attack? How Google Handles Security in Angular 4 Applications?
How Are JWTs Used to Authenticate Angular 4 Applications?What is JSON Web Token?
What Is Angular CLI? How To Updating Angular CLI? How to Update to Angular 5?



What Is Sross Site Scripting (XSS) Attack? How Angular Prevents Sross Site Scripting (XSS)?
How Angular Protects Us From XSS Attacks? How To Handle XSS Vulnerability Scenarios in Angular?
How To Bypass Angular XSS Protection? How To sanitize a value manually?
How To Handle XSS Vulnerability Scenarios in AngularJs? How Prevents HTML DOM Based Cross Site Scripting (XSS) Attacks?
Angular Security Principles - Angular Security! Attacker's Malicious Scripts and Code – Vulnerability!
How To Validate Email in Angular 4 using formGroup or Custom RegExp? What Is Pipes? Why Use Pipes in Angular?
What is Cookie Based Authentication in Angular 4? What is Token Based Authentication in Angular 4?
Angular 4 Cookie vs Token Authentication? What Are Events Binding in Angular 4?
How To Get Actions of Event Binding in Angular 4? What Is Property Binding? How To Achive in Angular ?
How To Open Dialog Box in Angular 4? How To CREATE Datepicker in Angular 4?
What's New in HttpClient and HttpClientModule in Angular? How To use HttpClientModule in Angular?
HttpClient vs HttpClientModule How To Set Authorization Headers in GET/POST/PUT requests in Angular?
How To Add CSS Styles in Angular 5/4 Applications? How To Use Angular Datepicker in Angular 5/4 Applications?
Angular 4/5 ng build vs. ng serve Commands What Is APP_BASE_HREF in Angular 4/5?
What Is HttpInterceptor in Angular?What Is Cross Site Script Inclusion (XSSI)?
What Is Modular View Engine Architecture? How To Open and Close Modal Popup Using Typescript and Bootstrap?

Angular 4 Charts - Line, Bar, Pie, Doughnut

Angular 4 - Pie Chart Angular 4 - Bar Chart
Angular 4 - Doughnut Chart Angular 4 - Line Chart

Ionic 3 with Angular 4 Charts

Ho To Install Charts in Angular 4 using Ionic 3 CLI? How to Create Bar charts in Angular 4 using Ionic 3 CLI?
How to Create doughnut charts in Angular 4 using Ionic 3 CLI? How to Create Line charts in Angular 4 using Ionic 3 CLI?

Angular 4 Kendo UI

Setting Up Kendo UI in Angular 4 Project How To Use Kendo UI Grid in Angular 4 Project?
How To CREATE Dialog Box in Angular 4 Project? How To CREATE Kendo UI DropDownList in Angular 4?
How To CREATE Kendo UI ComboBox in Angular 4?

Ionic 3 with Angular 4 Docs

How to Setup and Install Ionic Framework with Angular 4? How To Build Mobile Apps using Ionic 3 CLI and Angular 4?
How To Starting Angular 4 Apps using Ionic 3 CLI Commands? How To Viewing the Angular 4 Apps in a Browser Using Ionic 3 CLI?
List of Useful Ionic 3 CLI Commands? How To Generating New Pages in Angular 4 Apps using Ionic 3 CLI?
How To Generating New Pipes, Tabs, Components and Pages using Ionic 3 CLI in Angular 4? How To Do Login and Logout using Ionic 3 and Angular 4?

Angular 5 Fundamental Concepts

What's New In Angular 5? What Is the Difference Between Angular 4 and Angular 5?
57 Best Advantages of Angular 5! Angular 5 Router Life Cycle Events

Angular 2 Fundamental Concepts

Introduction of Angular 2 Setup Angular 2 in .NET MVCAdvantages of Angular 2
The Major Changes of Angular 2 Component Life-cycle HooksSupport of Modern Browsers
Angular 2 Vs. Angular 1 Angular 4 Vs. Angular 2 Constructors Vs. OnInit
Use of ngInit and ngOnInit ngOnInit() Vs. Constructors HTTP Cookies
Dependency Injection (DI) Inject() Vs. Injectable() Features and Benefits
Bindings in Angular 2Initialize an Array in Angular 2TypeScript Tutorial - The Fundamental Concepts!






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