ReactJS

ReactJS is an open-source JavaScript library used to build the user interface for Web Applications. It is responsible only for the view layer of the application. It provides developers to compose complex UIs from a small and isolated piece of code called "components." ReactJS made of two parts; the first is the components, which are the pieces that contain HTML code and what you want to see in the user interface, and the second one is an HTML document where all your components will be rendered. Facebook developed React.js to address its need for a dynamic and high-performing User Interface(UI). In 2011, Jordan Walke and his team from Facebook released the React JS library, a JavaScript library that brought together the speed of JavaScript and a new way of rendering pages, leading to responsive and dynamic user input. In 2015, two years after the team open-sourced React.js and its popularity grew, they released React Native.

React-Native is very similar to ReactJS in a way, but there are differences you need to know before you start your first native app.

Advantages of ReactJS

DOM (document object model) is a viewing agreement on data inputs and outputs. React's virtual DOM is faster than the conventional full refresh model since the virtual DOM refreshes only parts of the page. The interesting part is, the team at Facebook wasn't aware that partially refreshing a page would prove faster. Facebook was looking for a way to reduce their re-build time, and partial DOM refresh was just a happy consequence. This increases performance and faster programming.

Even to those unfamiliar with React, it is easily readable. Many frameworks require you to learn an extensive list of concepts that are only useful within the framework. React strives to do the opposite.

ReactJs Gives Power Boost To SEO

Since Reactjs is capable of server-side rendering, it gives a power boost to the SEO of a webpage/app and attracts more organic traffic. When a Google bot visits a server, which has already rendered the content and images, indexing and caching of the content becomes faster. It gives a huge heads up to the overall SEO strategy of the website. Besides, if the Google bot directly indexes the content from the server-side, the page load time also decreases. This fast visibility of webpages gives the end-users a better user experience, thereby a win-win situation.

You can use hybrid mobile app development, like Cordova or Ionic, to build mobile apps with React, but it is more efficient to build mobile apps with React Native from many points.

Huge Ecosystem Of Developer Tools

Reactjs is blessed to have a huge community of developers who have created a massive ecosystem of tools, component libraries, IDEs, extensions for code editors, web browsers, and more.

The availability of a wide range of third-party tools and extensions unleashes a new dimension of innovation while saving time and resources at the same time. Community-powered innovation makes Reactjs one of the most popular options for creating innovative path-breaking apps and websites.

React Native

React Native lets you build mobile apps using only JavaScript. It uses the same design as React, letting you compose a rich mobile UI from declarative components.

With React Native, you don't build a "mobile web app", an "HTML5 app", or a "hybrid app". You build a real mobile app that's indistinguishable from an app built using Objective-C or Java. React Native uses the same fundamental UI building blocks as regular iOS and Android apps. You just put those building blocks together using JavaScript and React.

React Native combines smoothly with components written in Objective-C, Java, or Swift. It's simple to drop down to native code if you need to optimize your application's few aspects. It's also easy to build part of your app in React Native and part of your app using native code directly - that's how the Facebook app works.

React Native lets you build your app faster. Instead of recompiling, you can reload your app instantly. With hot reloading, you can even run new code while retaining your application state.

Advantages of React Native

If you know JavaScript, React Native will be easy to pick up, allowing most front-end web developers to be mobile developers. All you need to know is JavaScript, platform APIs, some native UI elements, and any other platform-specific design patterns, and you're set.

React Native's component-based structure allows developers to build apps with a more agile, web-style approach to development than most hybrid frameworks and without any web at all.

Ready-to-use UI libraries for smoother UI experience: Component UI libraries exist in the React Native ecosystem. Developers can use it for a smooth UI experience. Such sharing of UI libraries such as Shoutem, Expo, native base, and others save the time required to build them from scratch, and this means that more focus on innovation and ideas can be given, rather than creating libraries from scratch.

Doesn't use HTML to render the app. Provides alternative components that work similarly, so it wouldn't be hard to understand them.

Native app development usually means inefficiency, slower time to deployment, and less developer productivity. React Native is all about bringing high speed, responsiveness, and agility of web app development and effectual processing and best user experience to the hybrid space, to provide your users with a native app experience.

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