Reactビギナーズガイドをtypescriptで勉強し直してわかったこと①【mixinは使うべからず（というか使えない）】 - Qiita{ "name": "my-app", "version": "0.1.0", "private": true, "dependencies": { "react": "^16.2.0", "react-dom": "^16.2.0", "react-scripts-ts": "2.13.0" }, "scripts": { "start": "react-scripts-ts start", "build": "react-scripts-ts build", "test": "react-scripts-ts test --env=jsdom", "eject": "react-scripts-ts eject" }, "devDependencies": { "@types/enzyme": "^3.1.8", "@types/jest": "^22.1.2", "@types/no
