Top 4 differences between Angular JS, Angular 2 and Angular 4
Angular is the brainchild of Google, developed in the year 2009. A revised version of Angular JS was introduced in 2011. Since then it is the most preferred open-source framework. One can avail of its benefits by hiring an Angular JS developer. Its popularity is because of its enthusiastic support to the users and the flexibility for businesses and individuals. Let us first understand these versions individually:
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AngularJS
AngularJS, as stated above, is an open-source front-end web framework. It is based on Javascript. To apply it to your website, you need to hire an Angular JS developer. It enables the developers to install HTML as the website’s template language and a chance to expand its syntax for producing many components of the application. Processes of data binding and dependency injection minimize the work of creating the codes. Thus, we can say it is the foundation stone for today’s front-end development. Developers across the world term it as ‘best single-page application development solution’.
Angular 2
Angular 2, unlike AngularJS, is an open-source framework based on a type-script front-end web application platform. It permits the conduct of the JavaScript classes. It is a complete overhaul of Angular 1 and AngularJS.
Some of its features:
- It assists in hierarchical dependency injection
- It is a scalable framework that’s faster and latest
- Its architecture is based upon web components
- Useful for all three- mobile, desktop, and web apps
Angular 4
Angular 4 is the modern and latest version of Angular. It is also a web application framework used to build JavaScript applications. There is no remarkable differentiation as far as Angular 2 and Angular 4 are concerned. You get a proper navigation toolbar, menus, auto-complete, features in Angular 4. On the other hand, it is an improvised version of Angular 2.
Here are some of its characteristics :
- Backups if or else statements
- Assists email validator
- Minimizes the size of the generated code package by about 60 percent.
Difference between AngularJS, Angular 2, and Angular 4 based on different parameters:
Architecture
AngularJS’s architecture is based on MVC (model view controller) design. The MVC design is the main component of the application’s behaviour point and aids in synchronizing rules, logic, and data. Based on information shared in the model, the output is generated. The process goes like this-
- Acceptance of input
- Conversion into command
- Shift the command to the model
- View the model
Let’s talk about Angular 2; here controllers and scope are overcome by components and directives. Usually, it concerns an application to view and page logic. You can find 2 types of directives:
- Structural directives that change DOM’s layout by replacing its elements.
- Attributive directives shift the overall appearance of the DOM element.
The architecture of Angular 4 consists of improvised nglf and ngF structural derivatives. Hence, it can be used in web templates.
Speed
AngularJS is a coders’ paradise, the reason being it is a quicker and modern application. It is developed much faster than Angular. However, for coders, AngularJS is the preferred option.
In contrast, Angular 2 and Angular 4 witness optimization for user speed purposes. The latter requires lesser space, and its performance is much faster than the former. In addition, both have less load time compared to Angular JS.
Language
As specified earlier, AngularJS is written in JavaScript language. Other versions of Angular like Angular 2 are written in the TypeScript language. This language is superscript based on ECMAScript 6 (ES6). Thus coders can avail benefits of both ES6 and TypeScript. Let’s talk about Angular 4; its recent version of TypeScript laced with power-packed type checking and object-based features.
Performance
Performance-wise Angular 2 is more efficient than AngularJS. The former is 2 to 5 times faster. One of the most significant drawbacks of AngularJS is, it is not supportive of mobile devices. Though Angular 2 supports mobile devices, not all of them. In Angular 2, coders get language choices like JavaScript, Elm, Dart, PureScript, TypeScript, etc. Such choices are not available in AngularJS. As a result, Angular 4 has better performance than Angular 2.
It has improved values, enhanced resources, user-interaction features, quick reflexes, and much more. The compiler-generated code has made Angular 4 much faster than its counterpart. It supports 2.1 and 2.2 versions of typescript.
Conclusion
Those were the top 4 differences between the three versions of Angular. The above discussion shows, every version has something unique to offer, and each new version is more advanced than the former. Hire an AngularJS developer from a reputed web development company, and let them choose the version which is best for your project.
Author bio:
Albert Smith is a digital marketing manager with Hidden Brains, a leading enterprise web & mobile app development company specializing in mobile & web applications, IoT, cloud and big data services. He provides innovative ways to help tech companies, startups and large enterprises build their brand.
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