1. 프로젝트 생성yarn create react-app 프로젝트명 --template typescript 2. babel 설치yarn add @babel/runtime-corejs3yarn add -D @babel/core @babel/preset-env @babel/preset-react @babel/preset-typescript babel-loaderyarn add -D @babel/plugin-transform-runtime 3. webpack 설치yarn add -D webpack webpack-cli webpack-dev-server html-webpack-plugin 4. babel.config.json 설정{ "presets": [ "@babel/preset-env", [ ..
