Feb 21, 2020 Admin

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ReactJs vs Angular: 8 Differences You Need to Know

There is no app developer who is not familiar with JavaScript, one of the most popular languages at present. From experienced to freshers, everyone has used or will use this programming language to develop webs and applications at some point in time. However, regardless of their expertise and working experience in the field, they are still confused when it comes to picking the right JavaScript framework for their projects.

Amidst all the well-known frameworks, the two names that stand out for front-end development are ReactJs and AngularJs. Both of them are robust technologies used by most of the programmers to create single-page apps. There is no denying the fact that ReactJs and Angular share equal popularity and are constantly evolving, hence, keeping the competition fierce. However, the two are often compared as they belong to the biggest competitors - Google and Facebook.

Angular is designed by the former while the latter backs and maintains ReactJs. Moreover, they offer advanced and customized features for web application development.

As a developer, you must be aware of how selecting the right one for the app or web can be a hard nut to crack. Therefore, to save you from any dilemma, we have decided to get you acquainted with the pros and cons of both the frameworks in detail. We have compared ReactJs and AngularJs based on different factors so that you can make a calculated decision for your next project.

Let’s get started:

Before you jump to the differences between the two, we have explained the two JavaScript frameworks in brief to give you an insight into what these two languages are. Have a look:


Developed by Facebook and its community in 2013, ReactJs is an open-source JavaScript library to build dynamic UI components for web applications. It is preferred for developing HTML elements for front-end and based on JSX (a PHP extension) other than JavaScript. The codes within this framework are easy to understand and launch. ReactJs Developers can create web pages using React components and utilize server-side to ensure high-performing and flexible solutions to the clients. Over the past years, React has emerged as one of the most successful languages and is still continuing to grow at a constant rate. Although it has its limitations as a JS library, when it is combined with other libraries, the results are powerful, ensuring effective solutions. 


Angular is also an open-source front-end platform to develop apps that uses HTML as a template language and its syntax to express the components clearly. It is an MVC (Model View Controller) framework created by the Angular team of Google and is backed by the company itself. It was launched in September 2016 and known as Angular 2.0 and is a rewrite of AngularJs which was introduced in 2010. It is TypeScript based used to create Single Page Apps (SPA) and a part of MEAN stack, compatible with various code editors. 




Learning Curve

If one has a strong command of JavaScript, then learning ReactJs is smooth sailing as there are no classic templates, complicated features or dependency injection. The framework is easy to understand and working in its ecosystem will be convenient as well. Furthermore, beginners and learners can find useful resources to hone their skills and create apps successfully. However, setting up a project can be a stumbling block initially as there is no predefined structure. Make sure that you learn Redux first which is used in React applications and keep pace with the updates. 

Learning Angular will be a tough row to hoe when compared to ReactJs as it comprises a huge library. There are numerous concepts that one needs to learn which is time-consuming and complex. It offers multiple ways to solve one problem with a lot of unnecessary components. Moreover, some of its features are combined with the framework, thus, making it unavoidable to learn and use them. You have to be familiar with TypeScript, RxJs, dependency injection, etc., and also need to keep the regular updates of the changes that are frequently introduced. 

Data Binding

ReactJs supports one-way binding which implies that any changes in the model will affect the view but it won’t be the other way round. When one introduces the updates in a model, it shows the changes in the UI but alterations in UI are not evident in the model state. This singular behavior minimizes the risk of error and controls complexity. 

Angular adopts a two-way binding approach which combines the Document Object Model (DOM) values with model data. In simple terms, any updates in the model will be evident in UI elements and vice-versa. The positive point is that Angular developers need not write the codes again, making the task easier for the developer. 


It is based on JavaScript and combines with JSX which is an extended XML syntax. This makes the coding easier as it almost looks like HTML, protects the coding from any injections and detects the errors instantly. JSX performs the same functions as TypeScript and is used for browser compilation via babel which is a translation code to turn it into the format that the browser can read. However, some developers can find it too complicated to comprehend. 

Although Angular is a framework, it used TypeScript which is a superset of JavaScript, making it suitable for larger projects. It is more compact than JS and easily spots mistakes in tying and convenient to navigate. Adding more to its list of benefits, TypeScript includes faster code refactoring, autocompletion and is clean and scalable. 

App Structure

There is no specific right structure in React. Developers have the complete liberty to choose the structure for the app. However, the problem is that designing the structure at the beginning of the project consumes more time and makes it difficult to start. Also, React has only ‘V’ part, i.e., View of MVC as Model and Controller are parts of other libraries. 
React is just more of a 'V' in the MVC.

It has a fixed, fully-featured MVC framework which is an addon for complex projects and divides the apps into three interconnected components. So once you learn it, it is easier to manipulate. The three layers are Model, View and Controller, popularly known as MVC. 

Document Object Model (DOM)

As ReactJs uses virtual DOM, it makes the framework super fast. All the changes in elements can be done quickly without rendering the whole DOM. This eventually adds to the performance and takes it to the new level as there is no need to change 100 items. It was this feature of ReactJs that created a buzz when it was introduced as speed is always the selling point. 

On the contrary, Angular sticks to the traditional and real DOM where the complete structure needs to be modified even if the alterations are made in one element. The entire tree structure of HTML tags is updated to finally mark the one change. 


There is no concept of the built-in container in ReactJs, hence, it doesn’t support dependency injection. Therefore, one has to use certain tools to inject dependencies in the ReactJS applications, such as Browserify, RequireJS, ECMAScript 6 modules, etc., which are used via ReactJs-di, Babel and more. However, the crucial task is to pick the right tool to use. 

Dependency injection provides Angular with an edge over ReactJs. This is done through parameters like $routeParams, $filter, store, and $scope. The two primary tools that make injection possible are $inject and $provide. It uses Object Oriented Programming (OOP) which implies that dependencies are written in different files. 

Directives and Templates

There is no separate division for templates and directives, hence, they need to be explained in one place. This makes it easier for readers to comprehend the codes even when they don’t know the syntax. 

It has its own directives, such as ng-bind and ng-app or you can create your own as well. The latter option paves way for better work, however, making it can be complicated to understand. 


With virtual DOM, ReactJs’ performance only gets better as the structure tree is lightweight, reducing the load on the browser. Moreover, with one-way data binding, there are no watchers, unlike Angular. 

Bidirectional data binding adversely affects the performance of Angular as it assigns more watchers to track the changes which further makes the whole process cumbersome. However, the recent updates have boosted the overall performance of Angular apps which are comparatively smaller than ReactJs apps. 


Also Read: DOT NET Development- Providing language interoperability

To conclude

We would say that ReactJs vs Angular is more about personal preference, business goals, and objectives. Both frameworks have got immense support from their respective communities, however, each of them has different philosophies and scope. ReactJs is perfect for custom solutions and computation-less apps while Angular is preferred for cross-platform, progressive web apps and hybrid apps.

Whether you are a developer or looking for the right solution for your business -be it retail & e-commerce, food & restaurant or any other one, evaluate both the options on different criteria and then reach a logical conclusion. We hope that this blog will help you in your quest and you will compare the two wisely. 

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