Top Angular2 Interview Questions and answers
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In this Article we will look at java-script based Angularjs2 questions. with Examples are some deom provided with understands well arsing.
Directives- an simple for data-directives is considerably simplified, So We are still subject to change. With A @Directive annotation, and An a directive may be declared.
Generics- small or simple typescript ex. has generics which may be very simple way to used some data in A frontend.
Lambdas with small or simple typescript ex.- In small or simple typescript ex., lambdas are available.
Question: What is ECMA Script ?
Question: What is @NgModule?
Example using @NgModule
Routes describes A web-application based’s routes
RouterOutlet is a simple “placeholder” componets that gets data expas well ased to each simple route’s content RouterLink is very simple way to used some data to link to routes
Question: What is Traceur compiler ?
Advanatges of using decorators are-
Separation of concerns.
Easy for tools to provide all kinds of support in templates like- error checking, auto-completion, graphical GUI designers
Support multiple modifications
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Answer It may be achieved using A directive i18n. data Internationalization (or i18n, which stas well ass for i–n) is A process some of adapting software as well as web web-application baseds to multiple like as a languages, allowing some Air web-application based to be very simple way to used some data by multiple some language-speaking users. From ensuring that Wer web-application based supports multiple languages, We may reach a broader audience as well as ensure a smooth user more experience for multilingual data users.
Answer @Input allows We to pass data into Wer controller as well as templates through html as well as defining custom data properties. anse allows We to easily reuse componets as well as have Am display different data values for each instance of A renderer.
Answer componetss push out events using a combination of an data @Output as well as an EventEmitter. anse allows a clean some separation between reusable componetss as well as web-application based logic.
Question: What are differences between componetss as well as Directives?
For register componets we use @componets meta-data annotation. For register data-directives we use @Directive meta-data annotation.
componets is a directive which use shadow HTML DOM to make encapsulate visual behavior called componets. componetss are typically very simple way to used some data to make UI widgets. Directives is very simple way to used some data to add behavior to an existing HTML DOM element.
componets is very simple way to used some data to break up A web-application based into smaller componets. Directive is use to design re-usable componets.
Only one componets may be present per HTML DOM element. Many directive may be very simple way to used some data in a per HTML DOM element.
@View decorator or templateurl template are mas well asatory in A componets.Directive don’t have View.
Question: What is primeng? How may it be very simple way to used some data with angular2?
Answer Make a simple simple PrimeNG demo web-application based using simple PrimeNG demo componetss like as a simple PrimeNG demo Button, Confirmation Box, Text Box.
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