To run on Ios

npx react-native run-ios

Output:

React Native is a well-known technology for developing mobile apps that can run across many platforms. It enables the creation of native mobile apps for iOS and Android from a single codebase. React Native makes it simple to construct vibrant, engaging, and high-performing mobile apps. In this tutorial, we will guide you through the process of building a simple calculator using React Native, enabling you to apply the fundamentals of React Native development.

To begin, you must configure your development environment. This requires the installation of Node.js, which acts as a runtime environment for executing JavaScript code outside of the limitations of a web browser.

• Installation: In this article, we’ll use the Expo CLI edition, which provides a more seamless experience for running React Native apps. To create your React native environment, follow the tasks in the order listed.
• Expo is a JavaScript and React-based platform that allows developers to use a unified codebase to construct cross-platform mobile applications for iOS, Android, and the web. This free and open-source framework provides a variety of tools and services that simplify the mobile app development process, allowing developers to create high-quality applications.