Angular vs React 2021: Which JS Framework To Select For Your Project?

1)Working With The Front-End Framework

Maturity of Frameworks

Understanding the maturity of these frameworks is important before adopting any of them. Your agile team would want to incorporate state-of-the-art technology to streamline project requirements. But, maintaining a balance between the new technology and proven methodologies is extremely crucial.

Learning Curve

Angular houses a huge dynamic library which makes it difficult for the developers to learn. There are several concepts and languages associated with it. Learning every concept and language takes time and makes a learning curve a bit rough with several ups and downs. Apart from that, Angular consists of a lot more components that complicate things up. Being a developing framework, Angular is constantly updating so the developer has to keep updated with the frequent changes in the Angular ecosystem.

Components & Architecture

The Angular framework is based on the MVC architecture which is a complex and fixed structure. The Angular framework allows the developers to break down the codes into separate files. This makes it easier to use and reuse the templates and codes in other projects as well.

Development, Productivity & Speed

The Command-Line Interface of the Angular framework allows a great development experience. It creates a brilliant workspace and allows the developers to design the components with just a few lines of code. Apart from that, there are a lot of built-in processes that can solve complex issues easily.

Backward Compatibility

Angular 4 is backward compatible with Angular 2 and above. The versions below Angular 2 are not backward compatible and this is one of the disadvantages of the AngularJS framework. Apart from that, Angular 2 is not compatible with AngularJS.

2)Technical Aspects Of The Frameworks


Angular uses DOM that greatly affects its performance which makes the process slow and inefficient. Not only the DOM but the two-way data binding also affects the overall performance of the Angular-powered applications. However, the recent update has come with improved performance.

Ease Of Update

Angular comes with an improved Command Line Interface (CLI) that comprises different commands that make it easy to upgrade the latest Angular applications. This reduces the development time to a minimum. On top of that, the up-gradation is automated, which makes this framework more preferable.

Data Binding

The Angular library uses a two-way data binding approach that changes the model state automatically when any change takes place in the UI element and/or vice versa. The two-way data binding approach is extremely easy to incorporate.

Document Object Modeling: Regular VS Virtual

Document Object Model (DOM) is an important KPI in the performance evaluation of each of the frameworks. The Document Object Model organizes HTML, XML, and XHTML document format in the form of a tree.


There is quite a huge difference between Angular and React frameworks. These both offer different levels of flexibility.

Developers’ Perspective

Angular is easy to incorporate but it takes time to deliver the projects since it has a very steep learning curve and there are tons of unnecessary elements, syntax, and things that are compulsory to learn. These elements delay the project deliveries and increase the coding time.


Angular uses Javascript or Typescript that happens to be a superset of JS This script is used in the development of bigger projects. Additionally, the code refactoring process is simpler and faster. This makes Typescript more compact than Javascript.

Suite Of Tools

The Angular framework is supported by several code editing tools such as Visual Studio, Sublime Text, and Aptana. The Command-Line Interface can be used to set up any project. The Angular Universal can be used for server-side rendering. Different platforms can be used for end-to-end testing in Angular.

App structure

There are three main layers in the structure of the Angular framework namely Model, View, and Controller. An object that is responsible for the Model layer is initialized by the second layer and displayed in the third layer. TypeScript is used to implement the component, an HTML file is used for defining the view and the CSS file is used to define the features.


Stack Overflow

Angular has been extremely popular till 2016 and Stack Overflow shows that both Angular and React frameworks were equally popular among several developers in the year 2018. Since then, Angular has become one of the most popular open-source JavaScrip libraries.

Google Trends

Google Trends neither shows the popularity nor the usage, but it shows which of these frameworks are the most talked about the created hype in the developer community. Analytics and data show which frameworks, people are more curious to talk about.

NPM Downloads

NPM is the package manager of the NodeJS platform. It streamlines the modules in place so that the node can find them easily. Apart from that, this package manager also handles the dependency conflicts smartly.


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Developers are quite skeptical when it comes to Angular as compared to React. It’s mainly because of Angular’s unpopularity due to Angular 1.0Although, Angular is developed by Google which provides constant improvements and long-term support for the framework. Angular is used by business giants including Nike, HBO, Forbes, Apple, AT&T, Microsoft, and many more.


In comparison to Angular, React has a wider community on both Github and Gitlab. Developers working with React need to learn continuously as the framework gets frequent updates. Because of the frequent updates, there is always an issue of lack of documentation. This framework is used by Facebook, Twitter, Airbnb, PayPal, Netflix, etc.

Advantages Of Angular JS

Two-way Data Binding

AngularJS has the MVC architecture and the framework synchronizes with the Model and View. As the model changes, the View also changes and so does the data in it. The two-way binding structure reduces the development time so the developers can effectively utilize the time in other development activities. This approach eliminates the need to write any additional code to continuously synchronize the View and Model synchronization.


This feature enables the use and proper implementation of HTML extensions. Proper implementation of HTML extensions help the developers to assign special behavior to the DOM. This helps them to create feature-rich and dynamic content with HTML.

Dependency Injection

AngularJS allows the developers to use the injectors that define dependencies as external elements. These external elements decouple the components from their dependencies. Dependency injections make the components more reusable and easier to manage.

Advantages Of React

React Guarantees Stable Code

ReactJS uses the downward data flow only. When an object is changed, particular components are updated. This structure of data binding offers code stability and improves the performance of the application.

Virtual DOM Offers Better UX

Web browsers use layout engines to parse the HTML syntax into a document object model which is either in the form of HTML, XML, or XHTML. ReactJS uses virtual DOM that offers a better user experience.

Fast Time-To-Market

Reusing the components saves tons of development hours. In programming and development, developers face several changes and this affects the work of other components in the system. The React framework offers a code-reuse feature that saves significant development hours.

Why & When: The Important Question

Your agile development team needs to know the requirements, resources, and toolchain of these frameworks. Different projects have different requirements and deliveries. It is better to select the framework that resonates with your development environment and streamlines your application development activities.

Why & When To Choose The Angular Framework?

You should select the Angular framework when:

  • Your agile team has sound knowledge of C#, Java, and has hands-on expertise on the previous versions of the framework
  • Your project requirement falls under the difficulty level of low to medium
  • Your tech team requires higher productivity and quality and you are open to adapt to the done-for-you solutions and templates
  • If you want to regulate the application size
  • You require a wide-scale feature-rich application

Why & When To Choose The React Framework?

You should select the React framework when:

  • Your team has hands-on experience in HTML, CSS, and JavaScript
  • When you need to develop a highly customized application
  • The development process involves a huge number of components with variable states
  • You have time to spare on the pre-development processes

Down The Road

Selecting a framework depends on the learning curve for the companies and the agile development teams. React can go a long way in getting the job done by organizing the HTML and also offers the easiest ways to reuse the components and elements. On the other hand, Angular is capable of handling multiple elements without any additional help so it seems a bit tricky and complex at first.



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Nishi Agrawal

Nishi Agrawal


Management Student, Digital Marketing Enthusiastic Interested in Web Security and Internet topics. Young Mind with creative thinking capabilities.