npmのインストール後、ReactをTypeScriptで書くまで - Qiita

This utility will walk you through creating a package.json file. It only covers the most common items, and tries to guess sensible defaults. See `npm help json` for definitive documentation on these fields and exactly what they do. Use `npm install <pkg>` afterwards to install a package and save it as a dependency in the package.json file. Press ^C at any time to quit. が表示されて、幾つかの質問をされるので、それに適当に応え