Angular Interview Question Answers

Angular is an Open-Source front end web framework

Angular is an Back-end end web framework

Angular is a Low level programming language

Angular is a framework developed for Robots

Low Memory usage Free data access Strict programming structure Server and client communication support

Angular Supports two-way data-binding Angular Follows MVC patte architecture It supports Static and Angular Template. Custom directive support Client and server communication

Angular supports web-framework Dynamic template support No custom directive support Difficult to trace errors

Event handlers are difficult to use controlled memory leaks Custom Directive support MVC Patte Architecture support

Webframe work used for web site developments

Robotic AI development

Database intensive application development

Typically Angular is used for Development of Single Page Applications (SPA) with its read-to-use modules single page application development is simplified.

Expressions are used to writing some comments in the code for future reference.

Angular expressions are used for expressing code logic

Angular expressions are code snippets that are placed with two parenthesis open and closing side. Ex: {{expression }}. These expressions are used to bind application data to HTML

Angular expressions are used in code to let the data do its own task.

In Angular String interpolation is combining multi strings for displaying data

A special syntax that uses template expressions within double parenthesis {{ }} for displaying the component data is String interpolation in Angular

String interpolation is used in double {{ }} brackets for string manipulation

String interpolation in angular is a expression

Application model that lets the data view control the application controller

Scope binding of data between code and html view

Scope of the variable declaration in Angular

It refers to a application model, Scope acts like a glue between application controller and the view.

A Directive in Angular is something that introduces a new syntax

Directive for New Data Declaration

A Directive in Angular is something that introduces new framework

Directive in angular is a new data type.

Controllers in angular are data that is used in HTML UI

A Logic that controllers provide in Angular but have no way to control data flow

Controllers are functions which provide data and logic to the HTML UI. They control how data flows from Server to HTML UI

Data flows independently without the intervention of Angular Controllers

An angular injector can be used to inject new code at run time.

Injectors are useful for locating the services and providing data binding.

Used for injecting data for different modules.

An Angular injector is a service location, used to retrieve object instances as defined by provider, instantiate types, invoke methods and load modules.

Data binding that allows communication between Component and DOM (Document object Model) There 4 forms of data binding. a. String interpolation b. Property binding c. Event binding. d. Two-way Data binding.

Data binding is process of not letting the data move from one part of the code to other

Data binding allows programmers to let the data and program logic be independent and communicate on their own.

Just a way to tie up the data and not let any programming code access it.

In the imports array of the @Component decorator

In the declarations array of an NgModule

In a browser cookie

In an AngularJS $scope object

ngOnInit

ngOnDestroy

ngDoCheck

ngAfterViewChecked

FormControl

FormGroup

FormArray

ElementRef

count()

count.getValue()

count.value

count[]

It automatically retries every failed observable forever.

It prevents all future HTTP requests in the application.

It unsubscribes from its subscribed observable.

It converts every observable into a global singleton.