Refer this article for Creating React Native app with Typescript and expo

To become an Web Frontend Developer in 2023 you need to know the following skills.

Basic Skills​

If you decide to become an web developer. Then you should have understanding of the following technologies.

1. HTML: HyperText Markup Language | MDN
2. CSS: Cascading Style Sheets | MDN
3. JavaScript | MDN

Minimal code required to start a React-Native component is

a. An App Class which extends from React.Component

b. styles that are created from StyleSheet.Create()

Flow is used for static type checking in javascript. Flow works best when installed per-project with explicit versioning rather than globally.

Recently I had completed the set of four books which are worlds greatest books on personal Growth and Wealth. Lets have a look which books are contained in this set.

React Native​

Create native apps for Android and iOS using React

React Native combines the best parts of native development with React, a best-in-class JavaScript library for building user interfaces.

Refer

1. Summary​

A component library is a collection of logically group components so that one can explore, select components and helps in maintaining consistent design across projects. nag-ionic-lib built using following components.

1. Summary

A component library is a collection of logically group components so that one can explore, select components and helps in maintaining consistent design across projects. nag-rlib built usng following components.

Create React App is a easy and best environment for learning React, and is the easy way to start building a new single-page application in React.

Abstract classes are used for providing an abstraction to the code to make it reusable and extendable.

Abstract class in C++​

It is a class that has at least one pure virtual function (i.e., a function that has no definition). The classes inheriting the abstract class must provide a definition for the pure virtual function.