Updated May 8, 2023
Differences between Angular JS and Angular
Angular JS is a JavaScript-based framework well known for creating dynamic web applications. It uses HTML for template development. Directives in Angular JS enable it to develop code that is reusable as well as modular. Angular is a prominent open-source JavaScript framework created for developing web applications. Front-end developers must select one of its versions to proceed with their project development. Angular provides hierarchy-based architecture by supporting the hierarchy of components directive with templates.
Let us study much more about Angular JS and Angular in detail:
- Google developed AngularJS, also known as Angular 1, in 2009 and released it as version 1.0 in 2012. Angular became one of the most widely used open-source JavaScript frameworks on both enterprise levels and individual front-end developers. Angular does not provide scope and controllers. As a result, developers have released different versions with incremental features from AngularJS version 1.0 to Angular version 2.0 and currently use version 4.0 of Angular.
- Angular JS supports HTML attributes with directives and provides data binding between data and HTML with expressions that result in an easy-to-read, highly expressive, and faster-developed platform.
- All versions that appeared following Angular JS are collectively referred to as “Angular,” including Angular 2, Angular 4, and others. Developers use Angular 2, along with Angular 4, as an open-source and TypeScript-based platform for building UI applications. Angular 2 is wholly re-created on Angular JS. Angular 4 has some additional features and has backward compatibility with Angular 2. As a typescript-based framework, Angular also supports ES6 features such as reflection mechanisms, iterators, lambda operators, etc.
- Angular JS allows the developers to write an application based on MVC or MVVM architecture (also known as MVW(Model-View-Whatever) architecture). The dependency injection feature in AngularJS supports mocking dependencies.
- Angular JS uses the concept of scope and controllers. Developers can add many variables that have their scope in View and Controller. Angular JS also has a feature called as rootScope. Variables added in the rootScope can be available overall application.
Head-to-Head Comparison Between Angular JS and Angular
Below is the Top 8 Comparison Between Angular JS vs Angular:
Key Differences Between Angular JS and Angular
Below are the lists of points; describe the key difference:
- Angular JS denotes version Angular 1.x, where JS stands for JavaScript.
- Angular indicates version 2 and higher versions that use TypeScript.
- For creating web apps, anybody may use and distribute the open-source Angular JS framework.
- Angular is lightweight, supports most major browsers, and is used for developing testable JavaScript code.
- Excellent MVC data binding is supported by Angular JS, enabling more rapid application development.
- Angular JS provides a fast front-end development solution without using any external plugin or framework.
- Utilizing HTML as a declarative language makes Angular JS easy to understand the framework.
- Angular JS applications can be executed on all major platforms, including iOS and Android-based phones and tablets.
- An introductory page will be displayed only when disabling the JavaScript in Angular JS.
- TypeScript feature in Angular 2 allows code optimization with the help of object-oriented programming concepts.
- Angular 2 provides a better way of dependency injection and code modularity.
- For writing programs, Angular 2 supports multiple programming languages, including Dart, TypeScript, ES5, and ES6.
- Angular 2 uses a more straightforward routing mechanism.
- Compared to Angular JS, setting up Angular 2 is more difficult.
- Angular 2 is less efficient for creating small applications.
- In Angular, hash(#) is used to define local variables.
- Developers use Angular 4, which is a complete TypeScript, to build large and complex applications.
- Tests in Angular 4 are easier to write in comparison to other versions.
- Angular 4 comes with a modularised animation package.
- Angular 4 provides the View engine with better performance that helps to generate less code in AOT mode.
- For apps with a single page and an expanded interface, Angular 4 works effectively.
- When presenting a large number of data, Angular JS gets slower.
Angular JS vs Angular Comparison Table
Following is the set of points shows the comparison:
| BASIS FOR
COMPARISON |
Angular JS | Angular |
| Architecture | Supports Model-View-Controller design. The View processes the information available in the model to generate the output. | Uses components and directives. Components are the directives with a template. |
| Language | Written in JavaScript | Written in Microsoft’s TypeScript language, which is a superset of ECMAScript 6 (ES6) |
| Expression Syntax | Binding of an image/property or an event, a developer needs to remember the right ng directive. | Uses “()” for event binding and “[ ]” for property binding |
| Mobile Support | It does not provide mobile support | Provides mobile support |
| Routing | Uses $routeprovider.when() for routing configuration | Uses @Route Config{(…)} for routing configuration |
| Dependency Injection | Does not use dependency injection | Uses hierarchical dependency injection system with unidirectional tree-based change detection |
| Structure | Less manageable in comparison to Angular | Better structure, easier to create and maintain large applications. |
| Speed | Reduced the development effort and time due to its feature of two-way binding | Angular 4 is the fastest version yet. |
Conclusion
Angular JS is popular because of its inbuilt features and ability to develop reactive and responsive web applications. When Facebook introduced its frameworks like ember.js and react.js in 2014 with better performance and outcomes, it highlighted the drawbacks of Angular JS to the developers. Because of this, the Angular team launched a completely new and rewritten framework instead of upgrading the existing Angular JS framework. After that, it was decided to launch a new Angular version every six months, an upgraded version of the existing one, and not a rewrite. The current existing version of Angular is 5.
Since Angular is the rewrite of Angular JS, all the applications created using Angular JS had to develop again from the beginning to update the application. That has become a challenging task for the developers. Also, Angular is comparatively much more efficient in terms of performance and provides developers with an end-to-end and complete solution from testing to hybrid apps to animations. Angular is one of the most valuable frameworks for building large and complex applications. Angular 4 provides an inbuilt compiler to catch template errors within IDE. Improved tooling methods and reduced code sizes are features of Angular 4.
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