React Native installation

Hello everyone here is a brief getting started for React Native.
First thing you need to have installed npm package manager, if you haven’t installed it yet, it is part of node js, so please follow the link to install it: https://nodejs.org/it/

Then we have to install yarn package manager in the terminal:

npm install -g yarn

After that you have installed npm package manager you have to type in your terminal the following command to install expo:

npm install -g expo-cli