Building React App

 Creating an App#

Need to have Node >= 10 on local development machine (but it’s not required on the server). You can use nvm (macOS/Linux) or nvm-windows to switch Node versions between different projects.

( default npm install -g will install to c:/users/user_name/node_modules/bin)

For npm 5.1 or earlier, you can't use npx. Instead, install create-react-app globally:

npm install -g create-react-app

And Run

create-react-app my-app

For NPM 6 and higher

npm init react-app my-app

Or NPX Command to quick start (npx comes with npm 5.2+ and higher)

npx create-react-app my-app

cd my-app

npm start

YARN

yarn create react-app my-app

Selecting a package manager

When you create a new app, the CLI will use Yarn to install dependencies (when available). If you have Yarn installed, but would prefer to use npm, you can append --use-npm to the creation command. 

for NPM

npx create-react-app my-app --use-npm

Creating a TypeScript app

You can start a new TypeScript app using templates. To use our provided TypeScript template, append --template typescript to the creation command

npx create-react-app my-app --template typescript