What are React App , are they mobile applications or website? - reactjs

I am learning React JS from YouTube , and the instructor some time uses a word "React App" ,
I am confused that why he uses this word in the tutorial of website .
Please clarify it .
Thank you

There is a React and there is a React Native. They are two different things. React is an open-source, front end, JavaScript library for building user interfaces or UI(User Interface) components. That simply means React is for building front-end of websites/web apps. React Native is a JavaScript framework for writing real, natively rendering mobile applications for iOS and Android. That means React Native is for building mobile apps. React Native is based on React

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What is the difference between React, ReactJS, and React Native? [duplicate]

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What is the difference between React Native and React?
(45 answers)
Closed 1 year ago.
I want to study a course about React, but I don't know couple of things, like:
What is the difference between React, ReactJS, and React Native ?
Well, if there is a big difference, What is the best one of them to study ?
I am really looking forward to study it, so if you got any information on the best way to start learning this course, I would appreciate it.
Thank you so much.
React and React.Js is one and the same.
React / 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 first is components, that are the pieces that contain HTML code and what you want to see in the user interface, and the second one is HTML document where all your components will be rendered.
React Native
React Native is an open-source JavaScript framework used for developing a mobile application for iOS Android, and Windows. It uses only JavaScript to build a cross-platform mobile app. React Native is same as React, but it uses native components instead of using web components as building blocks. It targets mobile platforms rather than the browser.
Link for Further information
What is the best one of them to study ?
React and React native both solves different kind of problem. React is common library between react and react-native which provides supports for hooks and generate virtual dom.
react-dom will render content on web using virtual dom created by react.
However on other side react-native will create bundle for android and iOS.
Main differences between Reactjs and React Native
When it comes to a web platform, Reactjs can be defined as a base
derivative of React DOM, while React Native acts as a base
derivative by keeping workflow and syntax the same alongside
altering components.
React is a JavaScript library that can help your developers in
building a highly responsive UI Layer and React Native on the other
hand is a complete framework to develop cross-platform applications.
Virtual DOM is used to extract browser code in React; native APIs
help in rendering components in mobile in React Native.
In React Native, UI is rendered with the help of JSX but the
applications curated with Reactjs extract HTML in UI.
For styling in Reactjs, CSS is used, and React Native platform
requires a stylesheet for styling.
Using CSS, you can carry out animation in Reactjs; for animation in
React Native, you need to use an animated API.

React native web split point

I am using react native web to develop my web application.
I want to create code-split for my web application.
From my research on the web, I found that react web application has some code-split methods, which is shown in https://reactjs.org/docs/code-splitting.html
Does react native web supports these code-split techniques: import(), react.lazy, and other techniques shown in the code-splitting.html?
Don't know whether it is currently supported.

Amazon Pay Integration with React Native

Do anyone know any library or SDK to integrate Amazon-Pay with mobile app using React Native?
I have tried this following example from medium but I think it is for ReactJS only.
https://medium.com/#avremelk/amazonpay-react-js-f2c84931f82b

React for web, react native for mobile app development

I am looking into hybrid development. After some googling, it points to me that there are some potential in investing some time learning React and React native. Dont ask me about Angular, hated Angular due to its complexity. My question is does learning React helps in developing mobile apps with React native?
Regards,
Xing
React-native : This is Mobile Application Development(Hybrid mobile Apps)
React: This is Web Application Development.
Now in this Case those React and React-native Component life cycle Same.
but your using Some methods and components are Different then react to react-native. But mostly both are same. Except Components.
So , Finally if you are learned react and react native Definitely you will develop in this both.
But If you learned React you will Develop Only WebApps
Yes, when I started learning React Native, I had to get the concepts used in React. Basically you will take on React first, before proceeding into any offshoots. A solid foundation in the React style of programming will help a lot in React Native.
The following link is a good guideline. Read this for a start. And also the Facebook documentation for React. This may take some time, so if you have the time, you can proceed. Else try to cut it short when it comes to maybe webpack and stuff like that.
https://github.com/petehunt/react-howto
And then there are many tutorials in React Native. You can again start with the Facebook documentation for that.

Can React Native app (means same codebase) be turned into mobile web app?

Whether the same REACT codebase can be shared across mobile web and mobile app?
Unfortunately, you cannot. React Native uses a bunch of pre-built components that are really just native iOS components wrapped in Javascript. For example, you could use <div> or <span> in React but in React Native you'd have to use <Text>, images can only be displayed in <Image> components, etc. There are also stricter limitations on what styles, data, or nested components each React Native component can have.
On a side note, trying to do this goes against the React philosphy -> 'Learn once, write anywhere'. You can try taking a look at Ionic if you're interested in something that ports easily over to mobile apps.

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