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Angular 2+ Study Questions With Complete Solutions Latest Update
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Angular 2+ Study Questions With Complete Solutions Latest Update
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Solution 2024/2025Pepper
Angular 2+ Study Questions With Complete
Solutions Latest Update
Differentiate between Angular and AngularJS ANS✔✔ AngularJS is older,
original Angular that was MVC and JavaScript. Angular is 2+ uses
components and directives as well as TypeScript.
What is Angular? ANS✔✔ Angular is an open-source front-end web
framework. It is one of the most popular JavaScript frameworks that is
mainly maintained by Google. It provides a platform for easy development
of web-based applications and empowers the front end developers in
curating cross-platform applications. It integrates powerful features like
declarative templates, an end to end tooling, dependency injection and
various other best practices that smoothens the development path.
What are the advantages of using Angular? ANS✔✔ - It supports two-way
data-binding
, Solution 2024/2025
Pepper
- It follows MVC pattern architecture
- It supports static template and Angular template
- You can add a custom directive
- It also supports RESTfull services
- Validations are supported
- Client and server communication is facilitated
- Support for dependency injection
- Has strong features like Event Handlers, Animation, etc.
What is Angular mainly used for? ANS✔✔ Angular is typically used for the
development of SPA which stands for Single Page Applications. Angular
provides a set of ready-to-use modules that simplify the development of
single page applications. Not only this, with features like built-in data
streaming, type safety, and a modular CLI, Angular is regarded as a full-
fledged web framework.
What are Angular expressions? ANS✔✔ Angular expressions are code
snippets that are usually placed in binding such as {{ expression }} similar
to JavaScript. These expressions are used to bind application data to HTML
Syntax: {{ expression }}
What are templates in Angular? ANS✔✔ Templates in Angular are written
with HTML that contains Angular-specific elements and attributes. These
templates are combined with information coming from the model and
controller which are further rendered to provide the dynamic view to the
user.
, Solution 2024/2025
Pepper
In Angular what is string interpolation? ANS✔✔ String interpolation in
Angular is a special syntax that uses template expressions within double
curly {{ }} braces for displaying the component data. It is also known as
moustache syntax. The JavaScript expressions are included within the curly
braces to be executed by Angular and the relative output is then embedded
into the HTML code. These expressions are usually updated and registered
like watches, as a part of the digest cycle.
What is the difference between an Annotation and a Decorator in Angular?
ANS✔✔ Annotations in angular are "only" metadata set of the class using
the Reflect Metadata library. They are used to create an "annotation" array.
On the other hand, decorators are the design patterns that are used for
separating decoration or modification of a class without actually altering the
original source code.
What do you understand by controllers in Angular? ANS✔✔ Controllers are
JavaScript functions which provide data and logic to HTML UI. As the name
suggests, they control how data flows from the server to HTML UI.
What is scope in Angular? ANS✔✔ Scope in Angular is an object that refers
to the application model. It is an execution context for expressions. Scopes
are arranged in a hierarchical structure which mimics the DOM structure of
the application. Scopes can watch expressions and propagate events.
What are directives in Angular? ANS✔✔ A core feature of Angular, directives
are attributes that allow you to write new HTML syntax, specific to your
application. They are essentially functions that execute when the Angular
compiler finds them in the DOM. The Angular directives are segregated into
3 parts:
1. Component Directives
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