React Native is a cross-platform framework that can be used to build mobile applications. It was built by Facebook and Instagram as an alternative to using Java for Android and Swift for iOS.

1. React Native: What is it?
and, Why is it used?

2. Introduction
It is not wrong to say that mobile phones are half the soul of every individual and when it comes to developing for Android or iOS,
businesses often wonder whether they should offer their customers a mobile application with an excellent User Interface (UI) and
excellent User Experience (UX) or applications that are cross-platform compatible and faster to develop. And that's why React Native
Development is in the picture!
React Native helps you create real and exciting mobile apps using only JavaScript, which is supported for both Android and iOS
platforms. Just code once and React Native apps are available for both iOS and Android platforms, helping to save development time.
Having gained a lot of popularity and also supported by Facebook, React Native has huge community support today. React Native is
built on ReactJS, which gave huge competition to the long-time favorite, AngularJS. Although there are some similarities and
differences between ReactJS and React Native which is listed below:
React Native is a framework that creates a hierarchy of user interface components for building JavaScript code. It includes a set of
components for both iOS and Android platforms to create a mobile app with a native look and feel. On the other hand, ReactJS is an
open-source JavaScript library for creating user interfaces. However, both React Native and ReactJS are developed by Facebook using
the same design principles, except for designing the interface.
Because it uses the same code to build React Native iOS or React Native Android apps and web apps, you only need to know HTML,
CSS, and JavaScript. Let's take a look at the importance of the native React framework here!

3. Why is the React Native Framework important?
With the React Native Framework, you can render user interfaces for both iOS and Android platforms. It is an open-source framework
that could be compatible with other platforms like Windows or tvOS shortly. Because React Native components have counterpart
rights, you can reuse these components to build both Android and iOS apps.
You can either embed React Native components into your existing application code or reuse Cord-based code with the help of a plugin.
However, your existing app must be built with Cordova and Ionic code. React Native Development is quite simple, fast, and efficient.
React Native is a great choice for those developers who have JavaScript experience because there is no need to learn Android-specific
Java or Swift for iOS.
Another reason the React Native framework has gained popularity in recent years is that the framework helps to satisfy both
platforms at once, ending the holy war of choosing iOS or Android development for mobile developers. Therefore, huge companies like
Facebook, Instagram, Skype, Airbnb, Tesla, Walmart, Baidu Mobile, Bloomberg, UberEATS Vogue, and many others have shifted their
eyes toward it.
Additionally, using the React Native Framework fills the gap between targeting a broad market and making a profit. Since the number
of iOS users is less compared to Android users, yet they generate more profit, many industries are faced with the dilemma of whether
to focus on more profit by creating iOS apps or building user power only through Android apps. Android.

4. Why is React Native Framework used?
The first and foremost reason to use React Native
Framework is that a developer needs to write one
set of code, that is JavaScript code, to enjoy the
performance of React Native mobile apps. Let's
look at some pros and cons of using React Native
Framework here:

5. Pros-React Native
Its cross-platform use:
Originally invented for iOS app development, the React Native Framework is seeing popularity and success, which is why
Facebook later decided to provide support for the Android platform as well. Thus, React Native applications can be
developed using a single code base for both platforms at the same time, which has further increased its popularity.
It is a class performance
In the early stages, "hybrid" or "mobile web" apps were popular primarily for their unusualness. However, when it comes to
performance, the more complicated the apps, the more lag they experienced. That's why React Native entered the picture to
break the ice! React Native apps are compiled into natively written code, which allows them to not only work on both
operating systems but also work the same way on both platforms without any lag.
Other benefits of using the React Native Framework include its faster development, component reusability, and ease of
maintenance. Moreover, it is a time-saving process and hence many industries and even individuals today prefer to use
React Native along with NodeJS for creating amazing mobile apps.

6. Cons - React Native
It gets better with time
The native React framework is not flawless right now and has some bugs that still need to be ironed out. Some of the
custom modules are missing from this framework, which can lead to time-consuming assembly and the creation of custom
modules.
It still has a technological edge
Although the out-of-the-box elements of React Native will discourage you from making much technical progress, you'll still
need a professional developer to keep an eye out for some technical glitches and bugs.
Its existence is uncertain
Since social media giant Facebook developed this framework, its existence has remained uncertain as Facebook has every
right to terminate the project at any time. Although with the current popularity of this technology, this is unlikely to
happen.

7. Conclusion
Although React Native Framework has a few loopholes and hiccups, it passes all tests and hurdles to become the number one choice
for almost every React Native app Development Company for mobile app development. A React Native developer not only finds agility
and ease in developing React Native applications but also experiences high efficiency and low cost and workload during the process.
What makes this process more interesting is that you don't have to focus on both iOS and Android platforms when creating an app.
That's why many colossal companies in the world rely on the React Native Framework to build interesting applications that we use
daily.
Original Source: https://www.storeboard.com/blogs/technology/react-native-what-is-it-and-why-is-it-used/5504960

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