React Native permits people to develop mobile apps that feel, look, and perform similar to native apps. This makes use of the same UI building blocks that Android apps and regular iOS use. People are just needed to put the building blocks using React and JavaScript. The remarkable thing for developers is they are liberal to use the same concepts which help build web apps. When you have got familiarity with front-end development, you will discover that React utilizes a virtual DOM that performs as a shadow to actual DOM which is available.

In React Native, there isn’t any DOM but Native Components that are proposed by platforms, like Android and iOS. React Native has got a case of JavaScriptCore for executing JS code at the starting of an application. Again, it utilizes RCTBridgeModule for making a link between JavaScript code and native code for mobile app development service.

The Process of Installing

For getting started with React Native, the first step includes installing React and here, you will find the LINK. When the matter comes to developing a React Native app, you will find a couple of methods to do this:

  • Using a toolchain for building the application.
  • Move ahead without utilizing any toolchain.

The Creation of an app

At first, you need to install it globally. However, for this, you must use Node v6 or a type following it with npm v4 or npm v3 version of Yarn. After this, for creating an application, you have to run this

$ create-react-native-app my-app

$ cd my-app

When you have run the line of codes mentioned above, you will find the creation of a directory that will be named ‘my-app’ within the present working directory. It will create the initial project’s structure within ‘my-app’ and so; you must proceed to install all the dependencies related to it. When you are experienced with React Native, you would know that you don’t run the possibility of seeing any ‘iOS’ or ‘android’ directories. Hence, when the installation process becomes complete, you will be required to run some commands in the project directory.

  • Beginning with npm – This will run your application in development mode and when you wish to view it, then you will be required to open it on your mobile phone’s Expo app.
  • With npm test – This runs the test runner JEST for your tests.
  • With npm run iOS – This is similar to npm start though it also tries to open the app in the iOS Simulator when you have installed the Mac device.
  • Using npm run android – Similar to npm start, this too attempts to open your application on some connected device of Android and at times, on an emulator. However, it needs the installation of the build tools of Android.
  • Using npm run eject – This will begin the mechanism of ejecting from build scripts of Create React Native Application. After this, you will be asked some questions regarding the method in which you will like your project to be built.

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