The number of web development frameworks and libraries based on JavaScript continue increasing. The most popular client-side technologies are Angular and React, but you might ask - What should I use?

1. Angular 2 ReactVS

2. What do Google Trends tell us?

3. Angular 2 and React js trends

4. Angular 2 ReactVS
Version
Year of creation
Company
Size prod.
Size dev.
Language
15.4.0
2013
Facebook
117 KiB
559 KiB
JSX
2.0
2016 (1 version - 2010)
Google
144 KB
1 MB
TypeScript

5. Angular 2 ReactVS
Github Stars
Github Contributors
Churn
Tooling
Code Design
JavaScript “Fatigue”
DOM
60k
944
High
High
JavaScript Centric
More
Virtual DOM
55k
1569
Reduced
High
JS into HTML
Less
Regular DOM

6. Angular 2 ReactVS
Learning Curve
Packaging
Abstraction
Debugging General
Debug Line NO
Unclosed Tag
Mentioned?
Fails When?
Low
Strong
Strong
Good JS / Bad HTML
Yes
Yes
Compile-Time
Medium
Medium
Strong
Good JS/Good HTML
No
No
Runtime

7. Angular 2 ReactVS
Binding
Templating
Component Model
MVC
Rendering
Uni-Directional
In JSX Files
Medium
View Layer Only
Server Side
2 way
In TypeScript Files
Strong
Yes
Server Side

8. Angular 2 Pros
• Support for web components. Rather than having a closed
system for modularising AngularJS applications, Angular 2’s
foundations lie on the emerging Web Components standard. What
this means is that AngularJS will be able to use directly, without any
wrapper coding, any component written as a Web Component.
• Usage of Typescript. The biggest selling point of TypeScript is
tooling. It provides advanced autocompletion, navigation, and
refactoring. Having such tools is almost a requirement for large
projects.

9. Angular 2 Pros
• Great performance. Angular2 - doesn't do deep object
comparison. If items are added/removed to/from an array, change
detection won't detect it. The same for object properties as long as
they are not directly bound from the view.
• Angular2 CLI. The Angular2 CLI makes it easy to create an
application that already works, right out of the box. It already
follows our best practices!

10. Angular 2 Cons
• Difficulty in learning. If you haven't used typescript before, you'll
need to learn it and spend time for it.
• Regular DOM. Angular manipulates actual DOM directly, which
makes it quite slower and un-efficient in comparison with React.
• Difficulties in the server templating. Angular 2 still maintains
physical separation between the JavaScript driving your
application, and the HTML being rendered.

11. React Pros
• Total separation of data and presentation. React provides little
more than a presentation layer. Although React components do
have a concept of 'state', this is best used for ephemeral storage.
• Easy to start writing. Writing in React is almost similar to writing in
HTML, therefore you can easily start coding, skipping all the
syntaxis.

12. React Pros
• DOM binding isn't our concern. If you've written any front-end
component, with or without a framework, in the past five years then
you know the pain of binding DOM elements to functionality.
Although React would handle this in much the same way, it would
be split across multiple areas of the code with single
responsibilities.
• React isn't a framework. React is a library which provides a
declarative method of defining UI components. ReactDOM is an
associated library which provides rendering and DOM diffing.
Redux is a library which provides a data store, and React-Redux
provides the glue between React and Redux.

13. React Cons
• React isn't a framework.Again. Philosophy is great, but when you need to get
something done quickly, the React Way can be frustrating. If you have clients and
projects and pressing deadlines and the first page of your React handbook no
longer works (I've actually seen this), you can get frustrated.
• Build tools are necessary. Using build tools isn't too much of a pain, we
generally use them when we work in other languages anyway. The only real issue
with using them in JavaScript is there aren't standard, reusable solutions for all of
your projects. This can unfortunately seriously increase the amount of time it
takes to get the idea in your head into code.
• Community conventions are still developing. There are so many problems to
solve and React community isn't big enough to provide all solutions.

14. Companies that use Angular.JS
• PayPal
• Upwork
• The Guardian
• Nike
• Google
• HBO
• Sony
• General Motors
• The entire list of companies
you can find here - https://
www.madewithangular.com

15. Companies that use React
• Alipay
• Airbnb
• Dropbox
• Facebook
• Netflix
• Reddit
• The entire list of companies
you can find here -
• https://github.com/facebook/
react/wiki/sites-using-react

16. Conclusion
• React and Angular both are great technologies that give miscellaneous
opportunities in development.
• Angular 2 is on the market from 2014 comparing React in 2013, but it
obvious that the first one has a bigger community. Angular launched
first Angular in 2010 and in 2017 announced plans of 4th version, so we
can expect future improvement of the product.
• Angular is really good at declarative solutions, but it lacks the freedom
and simplicity of React.
• Finally, there is no "silver bullet", you need to choose the right solution
that will suit your challenges, goals, and long-term strategy.

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