What is Angular? Why Should You Consider Angular For Next Web Development?

 

Published On:

  September 21, 2022
Read Time 20.12 Minute Read
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What is Angular? Why Should You Consider Angular For Next Web Development?

Nowadays, the demand for websites is becoming a boom for many businesses ranging from social media to healthcare, from eCommerce to online banking. Besides, billions of people use the web and mobile apps for almost everything globally.

And yes, of course, as per the user’s demands, such business websites need to be updated. But the main question still arises: which is the best and most convenient method to create a web application? You’ll come across many front-end tools and frameworks like Angular, ReactJS, Vue, and many more. I think Angular is the preferred and excellent framework that makes it easy to design and build web applications smoothly.

We have come up with an article that answers your question, “what is Angular?” You’ll get detailed information on the Angular framework and why should you opt for this awesome framework.

What is Angular?

AngularJS is the first version, while the Angular 2+ version is referred to as Angular. Angular is a framework as well as a platform that is designed explicitly for developing web and single-page applications. Angular is written in TypeScript programming language and strictly follows HTML template language for building robust web applications.

Of course, there exists a great difference between Angular and AngularJS that every developers need to take care of.

Angular is solely responsible for implementing core and optional functionality as a set of TypeScript libraries that you import into your apps. Angular specifies a certain style and certain rules that developers working with an AngularJS development company need to follow and adhere to while developing apps.

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Angular Architecture

As discussed, Angular is a framework for building web applications using HTML and JavaScript. Also, it uses a TypeScript language that makes it easy for the developers to compile it to JavaScript.

Now, the main question arises: how does Angular work? To answer this question, you need to understand the basic concept of working on Angular applications.

The framework consists of several libraries, some the core and some optional.

Angular architecture patterns

From the above diagram, we can see that the Angular framework is divided into 8 main blocks which are as under:
  1. Modules

    For every Angular application, you will have only one root module named AppModule. The module usually provides the Angular developers with the bootstrap mechanism that makes it easy to launch the new application.

    An app typically contains many functional modules. Let’s say you are planning to use another custom Angular module for your application; then, it becomes mandatory for you to register the same module in the app.module.ts file.

    The Angular developers can easily organize the source code into distinct functional modules, which helps in managing the complex web application development and designing for reusability.

  2. Components

    Like modules, every Angular project contains at least one component, the root component. The primary role of the root component is to connect the component hierarchy with a page document object model (DOM).

    Inside every component, the developers define the class that contains application data and logic. Moreover, the components are associated with the HTML template that defines the view displayed in a target app. A component controls a patch of the screen called a view.

  3. Templates

    Angular templates are nothing but a combination of HTML and Angular markup. The primary aim of such templates is to modify HTML elements before they are displayed quickly. In addition, template directives provide program logic, and binding markup connects your application data and the DOM.

    Generally, there are two types of data binding.

    Event Binding: It allows the developers to build an app that efficiently responds to user input in the target environment by updating your app data.
    Property Binding: It allows the developers to interpolate values computed from app data into the HTML.

  4. Metadata

    Metadata is nothing but an instructor that informs Angular about how to process a class. It is designed explicitly to decorate the class so that the developers can quickly configure the expected behavior of a class.

    If you are working with the Angular 2+ version, decorators are one of the essential concepts you need to deal with. The user can use metadata to a class to tell the Angular app that AppComponent is the main root component. In addition, metadata can be attached to the TypeScript using the decorator.

  5. Data Binding

    The Angular data binding concept typically handles real-time communication between a template and its related component. Moreover, data binding is also a boon for communication between parent and child components.

    Angular allows communication between a component and the DOM, making it very easy to define interactive applications without worrying about pulling and pushing the data.

  6. Directives

    Angular components and directives are interconnected with each other. In simple words, we can say that directives and components both are essential building blocks of Angular applications.

    One such Angular directive is ngClass, a better example of the existing Angular attribute directive.

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  7. Services

    The Angular developers create a service class when no specific data or logic is associated with the particular view. In addition, the developers can even share the data or logic among different components.

    The @Injectable decorator immediately precedes the service class definition. The decorator provides the metadata that allows your service to be injected into client components as a dependency.

    The main functionality of the Angular framework is to distinguish components from services. And it leads to increase modularity and reusability for your application. For example, once the developers separate a component’s view-related functionality from other processing, you can make your component classes lean and efficient.

  8. Dependency Injection

    The primary role of the Angular developer is to keep the component classes short and straightforward. And that’s what Dependency Injection (DI) does.

    DI is not responsible for fetching data from a server, validating the user input, or logging directly into the console. In addition, they are accountable for delegating such tasks to the services.

    DI is equipped with the Angular framework and is typically used by developers everywhere to create new components with the services. Components consume services; you can inject a service into a component, giving the component access to that service class.

Advantages of Angular Framework

Let’s highlight some of the biggest and most beneficial advantages of Angular that bring convenience to building web applications for your business needs.  Moreover, the biggest advantage that we can say for sure is that there are many leading websites built using the Angular framework.

Advantages of Angular

Supported by Google

One of the biggest advantages that have come up with the Angular framework is the Long-Term Support (LTS). Google offers long-term support for Angular, which help you to deal with Google’s plan to keep using the framework and expand the Angular ecosystem.

The exciting part about Angular is that Google employs Angular and plays a vital role in improving the performance of the web application. With its active support of LTS, Angular help you scale your web application easily.

TypeScript

TypeScript is the primary language that is built explicitly for Angular application development. TypeScript is nothing but a superscript for JavaScript, and it allows for optimal code quality, making the web application more secure.

Its active support of TypeScript helps Angular developers easily detect and eliminate mistakes early on while writing the code or performing maintenance operations.

Browsers will not execute TypeScript directly. First, the Typescript code must be “transpiled” into JavaScript with the help of tsc compiler, which requires some configuration.

Declarative UI

With the help of HTML, the user interface (UI) of the Angular application is built. HTML is a more simple language as compared to JavaScript programming language. Angular is also a declarative and easy-to-use language that exclusively supports directives such as ng-app, ng-model, etc.

POJO (Plain Old Java Object)

POJO approach is included in the Angular framework. The developers do not need to use Angular’s getters and setters method.

By including POJO, the developers find it easy to perform object manipulation via all of JavaScript’s standard functionalities. Moreover, the Angular developers can quickly remove or add properties from the things while also iterating over them as needed.

SPA and PWA

One of the most cost-effective methods for website development to make it behave like mobile apps is a Progressive Web App (PWA). It is responsible for minimizing the network requirements and, most importantly, enhancing the web app performance.

Single-page web applications (SPA) may be written primarily when the developers need to utilize the server-side rendering capabilities of Angular. Moreover, it helps the developers to load the home page quickly and improves website performance on mobile and low-powered devices.

Simplified MVC Pattern

The angular framework typically uses the MVVM (Model-View-ViewModel) architecture rather than an MVC (Model-View-Controller). With the help of the MVVM model, the developers can efficiently deal with two-way data binding between View and ViewModel.

In addition, Angular allows the developers to deal with the automatic propagation to change within ViewModel’s state to the view. ViewModel strictly uses the observer model to inform changes to the ViewModel model to model.

Modular Structure

The entire Angular source code is grouped into different essential elements like Angular components, directives, pipes, and services. Modules are considered to be the heart of the Angular framework. The developers can easily deal with framing the features of applications smoothly.

Modules play a vital role in lazy loading. In simple words, by including modules in the Angular application, the loading features of the application in the background or on-demand turns to be faster.

With the help of Angular, you may develop a complex app while dividing work and ensuring organized code. When you have a solid grasp of these, you may make the most of the modules. Modularization might enhance developer efficiency in certain situations.

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Limitations of Angular Framework

It’s time to highlight some of the drawbacks of the Angular framework. But with the recent updates, the Angular community is working hard to remove such limitations.

Advantages of Angular

Limited Search Engine Optimization Options

Generally, the Angular framework comes up with the platform’s limited Search Engine Optimization (SEO) options and poor accessibility for search engine crawlers. And it’s one of the major drawbacks of using the Angular framework.

Being that Google is the number one search engine on the planet, we can’t imagine this problem will continue to persist for much longer before a solution is presented in another update.

Steep Learning Curve

Another glaring con of using the Angular framework is that it can be quite difficult to learn.
With such a complex web of modules, coding languages, integrations and customizing capabilities, understanding Angular definitely takes some time.

Fortunately, Angular provides phenomenal support and there are a number of online tutorials and courses you can take to catch up and start taking full advantage of all the program has to offer.

Migration

One of the reasons that companies do not use Angular frequently is the difficulty in porting legacy js/jquery-based code to angular-style architecture. Also, each new release can be troublesome to upgrade, and several of them are not backward-compatible.

Performance

Dynamic applications didn’t always perform that well. Complex SPAs could be laggy and inconvenient to use due to their size.

Lacking CLI Documentation

Some developers express concerns with the current state of CLI documentation. While the command line is very useful for Angular developers, you won’t find enough information in their official documentation on GitHub and you have to spend more time exploring threads on GitHub to get answers.

How To Create New Angular Application?

Now, it’s time to create a new Angular application from scratch. We will discuss the complete step-by-step guide on how to proceed ahead with a new Angular application. Before that, the developers need to analyze the list of the best Angular development tools to make the web app development process smooth.

Step 1: Angular CLI Installation

Angular CLI (Command-line Interface) is the official and main tool for creating Angular applications. To install CLI, we need to provide the following command: npm install -g @angular/cli.

Step 2: Angular Project Initialization

To initialize the Angular application, first of all, you need to navigate to the location where you want to keep your project.

Copy
“
cd ~
ng new angular-application”

So, it’s the first and most important step that is going to be used for creating a new Angular application. Once you give this command, the CLI will prompt you with multiple options that you want to configure for your application.

creating angular application

Step 3: Adding Angular HttpClient

Now, we need to import HttpClientModule to our app.module.ts file.

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import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { HttpClientModule } from '@angular/common/http';
import { EmployeeComponent } from './employee/employee.component';
import { AdminComponent } from './admin/admin.component';

@NgModule({
declarations: [
AppComponent,
EmployeeComponent,
AdminComponent
],
imports: [
BrowserModule,
AppRoutingModule,
HttpClientModule
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }

Likewise, whatever the components you add, do not forget to import them; otherwise, it will throw an error.

Step 4: Creating UI Components

As stated earlier, Components are the building blocks of Angular application. Creating an Angular component is simple.

creating ui components

Here, we have created the “employee” component. And as you can see that all the essential files are automatically created by the Angular CLI.

created by the angular cli

Likewise, let us create one more component (admin) in our Angular application. So, now we have two components employee and admin.

Step 5: Adding Routing Functionality

We will perform the redirection of the empty path to the employee component. This, in order, will constitute the first-time users’ automatic redirection to the home page.

We’ll be running the following set of routes into our src/app/app-routing.module.ts file:

Copy
import { NgModule } from '@angular/core';
import { RouterModule, Routes } from '@angular/router';
import { EmployeeComponent } from './employee/employee.component';
import { AdminComponent } from './admin/admin.component';
const routes: Routes = [
{ path: '', redirectTo: 'employee', pathMatch: 'full'},
{ path: 'employee', component: EmployeeComponent },
{ path: 'admin', component: AdminComponent },
];
@NgModule({
imports: [RouterModule.forRoot(routes)],
exports: [RouterModule]
})
export class AppRoutingModule { }

This way, we can work with the Angular framework. Yes, it is the basic concepts that help you create a simple Angular application from scratch.

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Summary of Angular Framework

After having a detailed look at the Angular framework concepts, we can give a final summary:

  • For front-end development, Angular is a one-stop solution for developers. It involves the applications client-side and has little to do with the back end.
  • Angular is best utilized for completing advanced, large-scale projects under the direction of a seasoned developer.
  • The developers can easily add Angular elements to projects utilizing a different platform, such as React or Polymer.
  • Google supports the Angular framework.
  • This program is not up to par with SEO best practices, so opt for a different platform if your primary focus is search engine optimization.
  • Angular is a JavaScript framework—not a JS Library.

I hope you got a clear understanding of the Angular framework and its usage. If you are planning to build a new web application for your business needs, Albiorix is a one-stop solution for Angular development services.

Ankur Akvaliya is Sr. Software Engineer at Albiorix Technology. He is a dedicated and hard-working person to deals with any technological needs. He is prominent in working with object-oriented design, problem resolution, requirement gathering, and finally debugging the code. Above all, his keen interest is in writing the technical articles that can become a boon for readers.

Frequently Asked Questions

What is Angular used for?

Angular is a platform and framework for building single-page client applications using HTML and TypeScript. Angular is specifically written in TypeScript language.

What is JavaScript?

JavaScript is the most frequently used client-side web applications programming language. It’s embedded into HTML documents to enable interactions with online pages in various ways. It’s a simple, easy-to-learn language that’s well-suited to creating modern apps due to its widespread support.

What is the Angular framework used for?

Angular is a TypeScript-based framework that is used by developers for building web, desktop, and mobile applications. Development of Angular applications involves the usage of Typescript, which is a superset of Javascript, along with HTML, CSS etc.

Is Angular a JavaScript framework?

AngularJS, the first version of Angular is a JavaScript framework. But Angular 2+ is considered to be a TypeScript-based framework.

Is Angular front-end or back-end framework?

Many times the big question that arises in the mind of developers is whether Angular is front-end or back-end. Well, the answer is Angular is a totally front-end framework.

Ankur Akvaliya

Ankur Akvaliya is Sr. Software Engineer at Albiorix Technology. He is a dedicated and hard-working person to deals with any technological needs. He is prominent in working with object-oriented design, problem resolution, requirement gathering, and finally debugging the code. Above all, his keen interest is in writing the technical articles that can become a boon for readers.

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