UI Development

Angular 2 VS React

Angular2 Vs React: Comparing the incomparable

Angular 2 and React are two of the most popular front-end frameworks in the current market. Angular is the JavaScript front-end or client-side framework, and, React is the JS front-end or client-side library build on JavaScript. The comparison between these two is like comparing oranges and apples because one is a framework and another a library.

However, they can be used together or in alternate of each other, so it’s important to understand the differences between these two.


AngularJS is powered by Google. It was first released on October 20, 2010, and stable release was on March 18, 2016. AngularJS is considered as an enhanced HTML for making web application. It is an MVC or MVVM based framework ideally for making single-page applications. It also provides you two-way data binding for adding interactivity in your code, providing you a modular approach of doing it.


React is powered by Facebook and Instagram. It was first released on March, 2013, and it’s stable version was released on April 8, 2016. React is considered as a most-popular web-view framework in JavaScript. It provides the V (View) from MVC with high performance, reliability and reusability. It has a concept of virtual DOM. It is perfectly suitable for the large-data app and dynamic content.

Quick Facts

Strengths of AngularJS

Strengths of React

  1. Built-in extensibility and testability.
  2. It provides you better approach of doing things.
  3. Its two-way data binding makes it interactive.
  4. It fulfills all the shortcomings that are encountered in HTML code.
  5. Angular address the problem that HTML was not designed for dynamic views.
  6. Adding controls i.e., data-binding, controller, and plain javascript make Angular extensible.
  7. Angular provides you services and routing to make a responsive single-page application.


  1. It provides you a better toolkit and server-side rendering especially for high-level traffic.
  2. Server side rendering makes it really fast
  3. Very smooth learning curve.
  4. React Native launched in 2015 , enables you to build world-class , web interactive native look and feel.
  5. React is a performance-minded ‘View’ rendered approach.


Weaknesses of AngularJS

Weaknesses of React

  1. It causes performance issues while rendering or updating large block of data.
  2. It has complex data-structures.
  3. Slow as compared to React.
  4. Google is not using Angular in its own projects.





  1. It is not a full framework, it only focusses the UI part of the code, leaving behind all other components.
  2. Like Angular, React doesn’t provide you modular management libraries or routers.
  3. The way React Native fixes bugs is not good still, you have to wait for FB to do it or fix it yourself if you can.
  4. The most annoying part of React is “Flux”, which is more confusing than React.


React and Angular 2 – Similarities

React and Angular 2 – Differences

1.      Both React and Angular 2 serve developers as front-end technologies that assist them to detail the view of the web or mobile applications, and component based UI.

2.      These technologies are crafted to function with FRP & OOP paradigms without any performance lags.










1.      Angular 2 is a fully developed framework and React is a library having additional libraries backed by the communities.

2.      Angular 2 offers more functionality. The change detection is entirely different on both these platforms.

3.      Angular 2 comes with an enforced separation of concerns in dependency injections, and services.

4.      The language used in Angular 2 is TypeScript, and React runs on ES5/ES6.

5.      Both support different ways to define the UI, Angular 2 uses HTML templates and React makes use of JSX.

6.      React supports static typing which helps it to gain a little performance improvement over Angular 2. React enables virtual DOM differentiating and Angular 2 makes use of tedious checking.


Few differences between the two most popular JS (library/framework) i.e Angular 2 and React JS

1. Component:

Both React and Angular 2 are based on Component model. But they both differ in the way the component is used.

In Angular 2 :

import { Component } from 'angular2/core';
    selector: 'any-selector',
    templateUrl: 'app/demo.template.html'
export class DemoComponent { }

In React :

import React from 'react';
export default class DemoComponent extends React.Component {
  constructor(props) {
    this.state = { data: 'Hello World!' };
  render() {
    return (

We can see that both React and Angular 2 uses component (which is based on class feature of ES6)
Component used in Angular 2 is quite difficult as compared to React. As they use annotation or can say, decorators (which has a quite unusual syntax with JS code).

On the other side, Angular 2 uses template URL to store HTML (which is separate from JS code)
But React uses inline HTML code (which is coupled component with HTML and JS code ie. messy code).

2. ECMA 6:

Both React and Angular 2 uses latest ECMA 6 features but React uses Babel  to transpile ES6/ES2015 code into its ES5 counterpart. While Angular use typescript (mostly) which uses adds static types inside javascript. This static types used inside JS is a demerit in itself.

3 DataFlow :

Angular 2 is based on bi-directional data flow while React JS is based on uni-directional data flow.

4. Routing :

Angular 2 has its own routing functionality in its own framework. While React relies on another library “react-router”.

5. DOM :

 React JS use Virtual DOM (Javascript representation of actual DOM) to manipulate the actual DOM , which makes it quite fast and efficient in comparison to Angular 2 which directly manipulate actual DOM.

6.Tooling Support :

For tool used to support React we need to search for those which supports JSX feature . Although there are many tools in the market which support JSX. But Angular 2 does not require any special tool as it stores HTML in a separate file.

7.Architecture :

React does not provide any architecture , but facebook developers suggest to use either flux or redux based architecture which supports unidirectional data flow.On the other hand, Angular was based on MVC architecture earlier but later in Angular 2 , architecture is based on the component with bidirectional data flow with the concept of dependency injection (most opinionated ) .


If you want to build an app with powerful UI, then React would be a better choice for you, and if you really want to build a complex web front-end and need a single modular framework to handle everything, then AngularJS will be an ideal option for you.






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