This document compares the JavaScript frameworks ReactJS and VueJS. It discusses what each framework is, why they are popular, companies that use them, and pros and cons of each. ReactJS is a library for building user interfaces, used by Facebook and others. VueJS is an open source framework for building single page apps. Both are component-based but have differences in documentation, learning curves, and capabilities for large projects.

1. ReactJS vs Vue.js — What to choose in
2019?

2. Introduction
- JavaScript has gained a lot of popularity in the last few years and many technology companies are
getting the benefits of it.
- There are a plethora of JavaScript languages and frameworks coming up each and every day and tech
companies can’t use all of them.
- Because it is a very difficult decision to choose those frameworks who are worth using.
- The JavaScript is being adopted by various companies at a rapid pace. So, the tech companies cannot
afford to overlook the top 2 most used JavaScript framework of this century- VueJS and ReactJS.

3. What is ReactJS and Why it is Popular?
ReactJS was built by developers at Facebook and makes it very easy to build new and interactive user
interfaces.
Read More- Vue.js vs React: Which is Best?

5. It is Not an MVC Framework
- There are so many MVC based JavaScript frameworks which are doing a good job in terms performance
and reliability.
- Why is ReactJS has become so popular? Why developers prefer using ReactJS instead of any other MVC
based JavaScript framework.
- ReactJS is a JavaScript library used for creating attractive and reusable user interface components.
- Developers can easily create reusable user interfaces by breaking these into components instead of
using HTML with the help of ReactJS.

6. Learn it Once, Write Anywhere
- The official features of ReactJS are mentioned on its website which says that developers can build new
mobile apps in JavaScript using ReactJS library.
- ReactJS currently uses JavaScript, XML, or JSX i.e. an extension to the syntax in JavaScript.
- ReactJS it doesn’t use JSX in a full fledged manner but it easily helps in the creation of new UI
components and debugging.

7. Companies Using ReactJS
Some of the top companies which are using ReactJS are Netflix, Instagram, Facebook, Yahoo, New York
Times, Microsoft, and Airbnb.

8. What is VueJS and Why it is Popular?
- VueJS is one of the most popular open source JavaScript framework which is capable of developing
single page applications.
- VueJS also works as a web application framework with the purpose to simplify the web application
development.
- Application development in VueJS got huge attention from developers worldwide for developing new
web applications.
- There are a various number of reasons for the popularity of VueJS and one of the important is its ability
to render again without any action.
- It also allows developing small, reusable, and robust components. Therefore, it is a composable
framework which allows you to add components when required.

10. Companies Using VueJS
Some of the top companies who are using VueJS are Xiaomi, Alibaba, Gitlab, Grammarly, Adobe, and Netflix.
Read More- Python vs Php which is choose in 2019?

11. Who Wins the Battle: VueJS vs ReactJS
● Some of the similarities between these two frameworks are as follows:
- Both these frameworks are created to work with root libraries
- Both frameworks use component-based structure
- ReactJS and VueJS are based on virtual DOM model
● There are lots of differences between both the JavaScript frameworks. Each framework has its own pros
and cons to consider. Here are all the pros and cons of both the frameworks.

12. Pros of ReactJS Library
Here are the pros of using ReactJS library:
- React.JS comes with a high level of flexibility and responsiveness
- Migrating from one version to another version in ReactJS is very easy
- ReactJS is a 100% open source library which gets daily updates and improvements because of the
contributions made by the developers worldwide.
- Virtual DOM in ReactJS allows arranging the documents in HTML, XML, and XHTML format in a tree
where it is accepted by web browsers when parsing different types of elements in a web app
- ReactJS syntax are easy to learn for developers who have the knowledge about coding in HTML. This one
of the point which makes ReactJS ahead of VueJS.

13. Cons of ReactJS Library
- The lack of proper documentation is one of the biggest con of ReactJS
- The learnability scale of ReactJS is on the higher side, meaning that developers take time to understand
the environment of ReactJS

14. Pros of VueJs
- VueJS is very helpful when it comes to developing reusable templates with no extra time needed
- VueJS can be used for developing a single web page and complex web pages for the web applications
- VueJS offers to switch between different frameworks because of its similarity between AngularJS and
ReactJS in terms of design and architecture
- VueJS has a lot of features similar to AngularJS, which allows optimization of HTML blocks handling with
the help of different components
- The documentation of VueJS makes it easier for developers to understand the framework

15. Cons of VueJS
- There are integration issues of this framework when it comes to handling big projects, which becomes
more important when there is no possible solution
- A great amount of documentation of VueJS is written in Mandarin, which makes it difficult for developers
to read it
- VueJS has a small amount of market share compared to ReactJS or AngularJS, meaning that sharing
knowledge is in the initial phase

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