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Angular Versions

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Angular Versions

A framework is crucial for building dynamic web and mobile apps. One such prominent framework is Angular. It was created by Misko Hevery to handle the drawbacks of HTML. While creating Angular, he made sure to take ideas from the best libraries and practices. He did so to make sure, this open-source front end framework suits all app development process. Angular, since its initial release in 2009, has evolved a lot.

Major features of all Angular versions

  • It is a JavaScript Framework
  • It provides HTML support
  • Allows event handling and data binding
  • Animation and form package

There are many versions of this framework and to know which one is the best for our needs, we need to know their features and difference. We will cover all that in this blog, but first, let us learn when each version came out.

  • Google developed this web application framework in 2009. It is officially called AngularJS. Some people call this version as Angular 1.0. This version came out in October 20, 2010.
  • After Angular 1.0, in 2016, Angular 2 was released. It was written from scratch and is fully different from Angular 1 or JS. 
  • The third update, Angular 4, was launched in the year 2017. It is not a complete rewrite of the original version. Instead, it is the updated version of Angular 2.
  • Angular 5, was released on 1st November 2017. The updates in this version help developers to create apps fast, as it removed unnecessary codes.
  • Angular 6 was released on 3rd May 2018, and the latest version of Angular 7 was out on October 2018.

Thus, we can see that Angular has evolved a lot from its basic versions. Every version comes with some new and advanced features. All these updates are on par with the latest market trends which make developers migrate to the newest version.

Still, there is some confusion about all these versions of Angular which is prompting some users to not migrate to the next version. In this blog, we will explore the differences between all the versions till 6.0. It will help you to understand them better and use the right framework for your app development process.


[Related Page: AngularJS CDN Integration]

Brief Introduction Of All Angular Versions 

We will differentiate between all the versions of AngularJS in detail below. But before that, let’s understand what every version exactly brings to the table and the major difference between all of them. 

AngularJS

AngularJS is the official name, but some developers also refer this as Angular 1. It is a front-end and open-source web application framework based on JavaScript. It uses HTML as a template in this framework. In AngularJS, the data and expression are merged to create an expressive environment for developing web applications quickly.

It uses the controller approach where the view communicates using a $scope.

Angular 2

Angular 2 is the next version of AngularJS. But the thing to remember here is that it was not a typical update. Angular 2 is a complete rewrite of its counterpart. It uses the component based approach. The use of Angular 2 in developing HTML and JavaScript Web apps is prevalent.

[Related Page: AngularJS Filters]

Angular 4

Angular 4 is typescript based open-source and front-end web app development framework. Angular 4 is the successor of Angular 2. It is not a complete rewrite, and both versions use the same patterns and concepts. It comes with some advanced features like smaller and faster apps, animation package, use of AS keyword and so on.

Angular 5

Angular 5 is more advanced and has more enhanced features than Angular 4. The best feature of Angular 5 is that it aids developers in removing unnecessary codes from their applications.

Other improved features are a code-sharing feature, less time for assembling dynamic web applications, and so on. Moreover, it has DOM support, and its compiler helps with incremental compilation.

Angular 6

The improvements in this version are even better. Angular 6 has been written to prefer web parts that are a part of most cutting-edge browsers. With this, you can make an Angular web component and use it in various HTML pages later.

[Related Page: Myths Of AngularJS Unleashed]

A Comparative Study Of AngularJS VS Angular 2 | Angular 2 VS Angular 4 | Angular 4 VS Angular 5 | Angular 5 VS Angular 6!

AngularJS VS Angular 2

Since Angular 2 is built from scratch; there is a huge visible difference in the code between the two. Let’s look at the major points of difference between the two:

Architecture

AngularJS architecture uses the model-view-controller design. It is the central component of the framework that expresses the behavior of the application. It also manages the app’s data, logic, and rules. The working of the architecture is like this:

First, the view generates the output on the basis of the data in the model. 

Next, the controller accepts the input. It then converts the input into commands and sends them to the view.

The architecture of Angular 2 uses components and directives. They work with the application’s view and logic on the page. Angular 2 has two types of directives- Structural that changes the DOM layout by removing and replacing its elements. The second is the attributive directive that modifies the look and behavior of the DOM element.

[Related Page: AngularJS VS ReactJS]

Components

The communication between the components of AngularJS and Angular 2 will see AngularJS come out as a winner. The reason- the communication between components of AngularJS is smooth transparent and fast which makes its interface convenient and supportive for the developer. In angular2, the time taken to do unit testing for components is less.

[Related Page: Difference AngularJS Vs Factory]

Performance

Angular 2 is faster than AngularJS in terms of performance. It doesn't fulfill the needs of the developers.

The speed of page loading suffered in AngularJS due to the creation of more processing time on the client side. 

In Angular 2, there is a better structure which can easily create and maintain big applications. Thus, the speed and performance of this version are far better than its counterpart.

Language

AngularJS language is JavaScript, while Angular 2 is written in Microsoft’s Typescript. It is also compatible with JavaScript, Dart, Elm, and PureScript.

Expression Syntax

In AngularJS, to bind an image/event, you require ng directive. Whereas in Angular 2, you require () for event binding and [] for property binding. 

[Related Page: Six Figure Pay With AngularJS Certification]

Mobile Support

One of the new features in Angular 2 is mobile support. AngularJS has no in-built mobile support, but its counterpart has excellent support for mobile apps.

What’s new in Angular 2?

In Angular 2, you have better data binding. For binding an image, you need to remember only square brackets like:

. You don’t have to worry about inserting curly brackets, and proper directive as only square brackets are enough.


Check Out AngularJS Tutorials

Angular 2 VS Angular 4

The major difference between Angular 2 and Angular 4 is their performance value. It is an updated and improved version of Angular 2. It comes with better values, resources, and user-interaction and so on.

There are only minor differences between these two in terms of core libraries and codes. If you are well-versed in Angular 2, the latter version will be easy for you to use.

Architecture 

As we know, Angular 2 has a component-based directive. In Angular 4, this has been improved in terms of enhancement of structural directives of ngif and ngFor. Also, in Angular 4, you can use if/else design syntax for your templates.

Performance and Speed

Angular 2 is fast in assembling and processing the application. But Angular 4 is faster and due to less AOT time in its compiler generated code; it is smoother and swifter than both AngularJS and 2.

[Related Page: AngularJS Directives]

Language

Angular 2 supports 1.8 version of Typescript while Angular 4 can easily support its higher version- 2.1 and 2.2.  These higher versions have type checking and object-oriented features.

What’s new in Angular 4?

The user has the freedom to use ‘else’ block along with “*ngif” block in Angular 4. Example:

<div *ngIf=”Condition; else runFalsyTemplate”>
      <h2>Condition true!</h2>
  </div>
<ng-template #runFalsyTemplate>
<h2>Condition false!</h2>
</ng-template>

[Related Page: Why Should You Use AngularJS?]

Angular 4 VS Angular 5

Angular 5 is a more enhanced version of AngularJS. The new features of this framework have more opportunities for developers and benefit them more. Let’s take a look at some of the new features of this version.

Architecture

We already know the architecture of Angular 4. In Angular 5, the architecture has improved to include a build optimizer that reduces or eliminates the use of code in the application.

It helps the application to achieve a sharper, optimized and arranged code structure.

Also, it has an in-built Angular Universal State Transfer API and Dom. It aids the developer to share the application easily between client and server side.  

[Related Page: AngularJS vs Node JS ]

Performance And Speed

Angular 4 had better speed than its previous version. In Angular 5, there is compiler which makes incremental compilation easy. It also increases the speed of the process and application completion becomes easy and fast.

Language

Angular 5 supports typescript version 2.3 as compared to the support of 2.1 and 2.2 version in Angular 4.

White Space Preservation

Angular 5 helps preserve white space which keeps the code organized. It helps to optimize the code for different browsers.

[Related Page: What is Angular CLI]

What’s New In Angular 5?

exports: Angular 5 provides multiple names support for both components as well as directives.

Enhanced decorator support: Angular 5 lets the developer use the lambda expression instead of naming functions, unlike its previous versions.

Example:

Component({  
            provider: [{  
                provide: ''  
                my - service ', useFactory: () => null}]  
            })  
            export class CustomClass {}

[Related Page: Why Should You Consider A Career Shift To AngularJS?]

Angular 5 VS Angular 6

Angular 6 is the most advanced version amongst all the Angular versions we have discussed. The improved features of this version make it easier and faster in use.

Here are the main features of this version:

  1. It supports typescript 2.7 and provides maintenance too. 
  2. The decorator and error message scheme in this version is far better than its counterpart.
  3. It has a closure compiler that generated small bundles.
  4. It has Angular material and CDK stable which you can use for creating UI components.
  5. It provides added support for native elements.
  6. Added test comment
  7. It lets you rename QueryPredicate to LQuery and LQuery to LQueries.

Now that you are aware of these features, you can easily use the Angular version that suits your needs.

[Related Page: How Will AngularJS Make A Difference In Your Career?]

Advantages And Disadvantages Of Angular Versions

AngularJS

Pros:

  • Its MVC binding makes app development fast.
  • It allows unit testing.
  • Since it uses HTML as a decorative language, it is highly intuitive.
  • It doesn’t require any other framework or plugin. It makes AngularJS the best front-end development framework.

Cons:

  • It is complicated as there are multiple ways of doing the same thing.
  • If the user disables JavaScript, only the basic page is visible to the user.

[Related Page: What Led To The Popularity Of AngularJS?]

Angular 2

Pros:

  • It is mobile-optimized
  • The routing process is simple.
  • It provides multiple language support.
  • It uses the OOPS concept which aids TypeScript to optimize the code.

Cons:

  • It is inefficient for creating small and simple web apps.
  • It is difficult to set up.

[Related Page: What makes AngularJS so special?]

Angular 4

Pros:

  • The development process is quite fast.
  • It is the best framework for single-page web applications that have extended the interface.
  • It is easy to create bulky applications as it has full TypeScript support.
  • It includes an animation package.

Cons:

When you display bulk data, it slows down.

Frequently asked AngularJS Interview Questions

Angular 5

Pros:

  • With Angular 5 you don’t have to rely on the browser for number, data, and currency. 
  • It has in-built international numbers, data, and currencies in the pipe.
  • It has a watch mode that complies only when needed.
  • It has fixed many bugs and errors of the previous version.
  • The new HTTP client is easy and simple to use.

Cons:

It is difficult to switch to Angular 5 from previous versions.

[Related Page: AngularJS Vs Bootstrap]

Angular 6

Pros:

  • Angular 6 reduces bundle sizes for common use.
  • It has an optional backward compatible generic type that supports typed.
  • It uses a new method of connecting modules and services. It helps to eliminate them if no required in the application.

Cons:

Like its counterpart, it is complex to use sometimes.

[Related Page: Understanding AngularJS]

Conclusion

With the help of the Angular framework, web app development process has become quite easy and secure. Even the applications have become highly scalable, flexible, and secure. It is easy to upgrade to any version of Angular. 

Of course, many developers globally still use AngularJS. But by migrating to other versions, you can yield some benefits that it doesn’t provide. To conclude, every version has something to offer, and as a developer, you have to move on to bigger and better things.

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Ravindra Savaram
About The Author

Ravindra Savaram is a Content Lead at Mindmajix.com. His passion lies in writing articles on the most popular IT platforms including Machine learning, DevOps, Data Science, Artificial Intelligence, RPA, Deep Learning, and so on. You can stay up to date on all these technologies by following him on LinkedIn and Twitter.


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