AngularJS vs. Angular 2 Vs. Angular 4: Key Differences

 The technology that powers the Internet tend to evolve as they progress and develop at speedy speeds, as needs evolve and developers create newer versions of the software. The Angular framework is an example in the point, and has seen a number of major modifications in just a couple of years. Google created AngularJS in 2009, and version 1.0 was launched in 2012. Angular has since taken over the open source JavaScript frameworks, thanks to the huge support and wide adoption for both businesses and individuals. This has led to Angular has changed from AngularJS version 1.0 to Angular version 2.0 and finally, the most recent Angular version 4.0 within just five years.

 

Despite the benefits that could be gained from the updates, some within the Angular community are concerned regarding the transition to a newer version. Continue reading to discover what's changed with Angular and why moving to the most recent version is a wise choice.

 

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What's Angular?

Angular development is an open source, JavaScript Framework written in TypeScript. Google is the maintainer and offers the standard structure that developers can use to work with it. Angular utilizes HTML syntax to specify the parts of your program in a clear manner. It allows developers to create large-scale applications in a manageable method.

 

Types of Versions of Angular Versions

Before we go into the different versions we must first define the different angles by providing the following description:

 

AngularJS

It is an open-source JavaScript-based internet application that is a front-end framework that allows for developing dynamic web applications. It makes use of HTML as the template language. By expanding HTML attributes using directives and connecting information to HTML using expressions, AngularJS produces an experience that's read-friendly as well as extremely expressive, and is quick to build.

 

2. Angular

The general word used to describe Angular 2, Angular 4 and any other versions following the release of AngularJS. They both Angular 2 and 4 are open-source, TypeScript-based front end web applications platforms.

 

Angular 4

The latest version Angular. While Angular 2 was a complete revision of AngularJS's code there aren't many significant distinctions among Angular 2 and Angular 4. Angular 4 is only an improvement, and it is backward to Angular 2.

 

Components from Angular Vs AngularJS

The major differences between a framework based on JavaScript and one that is TypeScript one is through their component parts. Angular utilizes TypeScript and uses components as its principal components. It is a component-based system, while AngularJS utilizes directives.

 

The operation of Angular employs an order of components and AngularJS provides directives to allow reuse of code. This means that the AngularJS framework has reused components for its users. AngularJS also utilizes scopes and controllers. Even though Angular uses standard directives, both frameworks implement these in different ways.

 

It is true that Angular components play a crucial function in creating user interfaces, where each UI element is classified as components. In AngularJs the exact same thing is accomplished by with the help of directives for components. AngularJS component directives is able to be converted to Angular by adjusting a few settings.

 

Directives and Use Between Angular Vs AngularJS

Angular contains standard directives and AngularJS comes with a collection of directives. Therefore each AngularJS and Angular utilize directives, but they do so in different ways. For instance, you can make use of the ng-model to build two-way bindings within AngularJS. The ng binding directive is ideal for binding that is one-way.

 

In contrast, Angular has only the ngModel. With symbols, it is possible to indicate the kind of binding. One-way binding can be described as:" []," and two-way binding:" [()]." "()" is used to describe event binding which "[]" is used for property binding.

 

Why is Angular?

• It is equipped with a mobile support framework.
• The most recent Angular version is compatible with TypeScript and allows modularity and code optimization by using the OOPS concept.
• It also supports changes to the development of a more hierarchical dependency system.
• Developers can make use of a variety of options, including syntax for typing, Dart, TypeScript, ES5 iterators, Angular CLI ES6 as well as lambda operator.
• Angular uses semantic versioning which uses an arrangement of major-minor-patch.
• One of its greatest benefits is the ability to handle the simplest route to take in.

 

What is the reason for AngularJS?

• Its secure MVC (Model-View-Controller) data binding makes application performance dynamic.
• Developers can easily conduct unit tests or change detection at any time.
• It offers a variety of useful tools for web developers, such as declarative template language that integrates HTML to enable developers to make the language more user-friendly.
• The open-source framework permits an organized front-end development. It doesn't require plugins or other platforms for operation.
• The AngularJS application is available on Android as well as iOS tablets and phones.
  
  
  
  

Difference Between AgularJs and Versions of Angular

Below is a contrast of AngularJS to Angular as Angular has both versions 2 and version 4. The comparison includes language, architecture Expression syntax, Mobile support and routing.

 

1. Architecture

AngularJS

The architecture of AngularJS is based on the model-view-controller (MVC) design. Model is the primary component that defines the behavior of the application and controls its data, logic and rules. View view produces output based on the data from the model. Its controller receives input, transforms it into commands, and then sends those commands back to model as well as to the model and the.

 

Angular

The Angular framework uses directives and components. Components are directives that have the help of a template.

 

Angular 2

Then, in Angular 2, controllers and $scope were replaced with directives and components. Components are directives using templates. They are used to control the view of the application as well as logic within the webpage. There are two types of directives available in Angular 2. The structural directives alter the design of DOM by removing or replacing elements and attributive directives which modify the appearance, behavior or behavior of the DOM element.

With Angular 4, the structural derivatives ngIf and NgFor are improved and you can now use if/else design syntax within your templates.

 

2. Language

AngularJS

AngularJS can be written using JavaScript.

 

Versions of Angular

Angular utilizes Microsoft's TypeScript language that is a subset of JavaScript. It has advantages such as declaration of types, as well as the advantages of ES6 including iterators, lambdas and lambdas

Angular 4 is compatible with the latest versions of TypeScript that feature robust feature checks for type and object-oriented functions.

 

3. Expression Syntax

AngularJS

To connect an image/property to an event to AngularJS it is necessary to keep in mind the proper ng directive.

Versions for Angular

Angular concentrates upon "( )" to indicate binding events and "[" to bind properties.

 

4. Mobile Support

AngularJS was not developed with the mobile user in mind however Angular, Angular 2 and 4 include support for mobile devices.

 

5. Routing

AngularJS uses $routeprovider.when() to configure routing while Angular uses @RouteConfig.

 

6. Performance

AngularJS was designed initially for designers and not for developers. Although there were technological advancements in the design, they weren't enough to meet the requirements of developers. The newer releases, Angular 2 and Angular 4 were updated to offer an overall increase in performance specifically in terms of speed and dependency injector.

• Speed

By enabling features like 2 way binding AngularJS has reduced development effort and the time. In addition, by implementing additional processing for the client side the load of pages took an incredibly long time. Angular2 has a better architecture to make it easier to create and maintain large applications as well as better change detection. Angular 4 is the fastest version to date.

• Dependency Injection

Angular uses unidirectional trees-based detection of changes. It utilizes an Hierarchical Dependency Injection technique. This dramatically improves the performance of the framework.

 

Advantages and disadvantages of the AngularJs and Angular Versions

Since it is Google products All Angular versions are reliable and have the support of Google engineers and the vast crowd composed of Angular Developers and users. But, each version comes with its own benefits and drawbacks.

1. AngularJS

Advantages

• It is unit-testing prepared.
• It comes with fantastic MVC data binding, which helps in the development of apps fast.
• The use of HTML in a way that is declarative makes it extremely easy to understand.
• It's a comprehensive solution for front-end development that is fast because it doesn't require any other frameworks or plug-ins.
• Apps running AngularJS run on any major program and more advanced cell, such as iOS as well as Android-based phones as well as tablets.
  
  

Advantages and Disadvantages

• It's huge and complex due to the many ways of doing the identical thing.
• Implementations are not scalable.
• If the person using an AngularJS application turns off JavaScript only the page's basic content is displayed.
• The UI is slow in the event that you have more than 200 viewers.
  
  

2. Angular 2

Advantages

• TypeScript lets you optimize code by using an OOPS principle.
• It is a mobile friendly format.
• It improves dependency injection and has improved modularity.
• It gives more choices for languages like Dart, TypeScript, ES5 and ES6 to write code.
• It provides a more efficient routing.

Negatives

• It's more difficult to configure compared to AngularJS.
• It's inefficient when you require the creation of simple, tiny web app development.
  
  

3. Angular 4

Advantages

• It enables a fast development process.
• is perfect for single-page web applications that have an extended user interface.
• Fully TypeScript support aids in the creation of large-scale applications.
• Tests are simple for you to make.
• An upgraded View Engine produces less code when while in the AOT Mode.
• It is a modular animation program.
  
  

Advantages and Disadvantages

• It's slow when it's displaying massive quantities of information.
  
  

Conclusion

It is evident that AngularJS is still useful , or otherwise everyone would have switched towards Angular 2.x or 4.x by the time we are here. Every version of Angular provides significant advantages and there's plenty to gain by staying up-to-date with the most current version. Angular is significantly more efficient than AngularJS and has a mobile-focused approach, works better using components, and allows easier migration from previous versions. If you're happy with the current version of Angular and want to switch to a different version, it isn't difficult and it's worthy of the time and effort.